This paper advances a reductive semantics for ‘ought’ and a naturalistic theory of normativity. It gives a unified analysis of predictive, instrumental, and categorical uses of ‘ought’: the predictive ‘ought’ is basic, and is interpreted in terms of probability. Instrumental ‘oughts’ are analyzed as predictive ‘oughts’ occurring under an ‘in order that’ modifer (the end-relational theory). The theory is then extended to categorical uses of ‘ought’: it is argued that they are special rhetorical uses of the (...) instrumental ‘ought’. Plausible conversational principles explain how this end-relational ‘ought’ can perform the expressive functions of the moral ‘ought’. The notion of an ‘ought-simpliciter’ is also discussed. (shrink)

The subjective deontic "ought" generates counterexamples to classical inference rules like modus ponens. It also conflicts with the orthodox view about modals and conditionals in natural language semantics. Most accounts of the subjective ought build substantive and unattractive normative assumptions into the semantics of the modal. I sketch a general semantic account, along with a metasemantic story about the context sensitivity of information-sensitive operators.

In this paper I present an argument for the claim that you ought to do something only if you may believe that you ought to do it. More exactly, I defend the following principle about normative reasons: An agent A has decisive reason to φ only if she also has sufficient reason to believe that she has decisive reason to φ. I argue that this principle follows from the plausible assumption that it must be possible for an agent (...) to respond correctly to her reasons. In conclusion, I discuss some implications of this argument (given that some other standard assumptions about reasons hold). One such implication is that we are always in a position to be justified in believing all truths about what we have decisive reason (or ought) to do. (shrink)

Competing metaethical theories are sometimes cast as alternative ways of responding to an inconsistency between two apparent features of moral judgments, viz., that they are truth-apt expressions of belief and that they have motivational force. I argue that this is an oversimplification that fails to address some important data that can be accommodated on the basis of a straightforward “good reasons” account of “ought” judgments that explains why certain of these judgments have motivational force will others do not. This (...) solution applies equally to all “ought” judgments regardless of whether they are advanced from the moral point of view, so it is not threatened by the existence of amoralists or moral nihilists. And it does not in its own right involve a commitment to any particular metaethical theory. This shows that the problem of motivation does not provide a good framework for the major metaethical debates. (shrink)

According to epistemic deontologism, attributions of epistemic justification are deontic claims about what we ought to believe. One of the most prominent objections to this conception, due mainly to William P. Alston, is that the principle that ‘ought’ implies ‘can’ rules out deontologism because our beliefs are not under our voluntary control. In this paper, I offer a partial defense of Alston’s critique of deontologism. While Alston is right that OIC rules out epistemic deontologism, appealing to doxastic involuntarism (...) is not necessary for generating that tension. Deontologists would still have a problem with OIC if doxastic voluntarism turned out to be true or if deontologism did not require voluntarism. This is because, in short, epistemic justification does not imply ‘can’. If, as deontologists maintain, epistemic justification implies ‘oughts’, then epistemic justification must also imply ‘can’ given OIC. But since epistemic justification does not imply ‘can’, OIC dictates that we reject deontologism. I end by exploring the possible consequences of this incompatibility between OIC and deontologism. My conclusion is that at least one of the following claims must be true. Either ‘ought’ does not imply ‘can’, attributions of epistemic justification are not deontic claims, or epistemic claims lack necessary or categorical normative authority. (shrink)

The syntactic structure of the deontic “ought” has been much debated in philosophy and linguistics. Schroeder argues that the deontic “ought” is syntactically ambiguous in the sense that it can be associated with either a control or raising construction. He distinguishes between deliberative and evaluative “ought”s and argues that the deliberative “ought” is control while the evaluative “ought” is raising. However, if there is a control sense of “ought,” it implies that there is a (...) sense of “ought” in which the word carries an external argument. Chrisman (2012) proposes two linguistic tests to verify this prediction. I add a new test, which I call the intensionality test, to the list. (shrink)

My primary purpose in this paper is to sketch a theory of doxastic oughts that achieves a satisfying middle ground between the extremes of rejecting epistemic deontology because one thinks beliefs are not within our direct voluntary control and rejecting doxastic involuntarism because one thinks that some doxastic oughts must be true. The key will be appreciating the obvious fact that not all true oughts require direct voluntary control. I will construct my account as an attempt to surpass other accounts (...) (especially those due to Feldman and Kornblith) in this vein. The new idea (in a telegraphic slogan) is that doxastic oughts are what Sellars called “rules of criticism,” which are logically distinct from but also interestingly connected to “rules of action.” The distinction provides a way to understand the phrase ‘ought to believe’ which is consistent with both doxastic involuntarism and epistemic deontology; the connection provides a novel way to incorporate a believer’s epistemic community into our understanding of the scope of epistemic obligations. (shrink)

Most philosophers believe that a person can have an obligation only insofar as she is able to fulfil it, a principle generally referred to as “Ought Implies Can”. Arguably, this principle reflects something basic about the ordinary concept of obligation. However, in a paper published recently in this journal, Wesley Buckwalter and John Turri presented evidence for the conclusion that ordinary people in fact reject that principle. With a series of studies, they claimed to have demonstrated that, in people’s (...) judgements, obligations persist irrespective of whether those who hold them have the ability to fulfil them. We argue in this paper that due to some problems in their design, Buckwalter & Turri’s conclusions may not be war- ranted. We present the results of a series of studies demonstrating the problems with their design and showing that, with an improved design, people judge that obligation depends on ability after all. (shrink)

Ought Implies Kant defends Kantianism via a critical examination of consequentialism. The latter is shown to be untenable on epistemic grounds; meanwhile, the charge that Kantianism is really consequentialism in disguise is refuted. The book also presents a novel interpretation of Kantianism as according direct duties owed to other animals.

Many of us feel internally conflicted in the face of certain normative claims that make infeasible demands: say, normative claims that demand that agents do what, given deeply entrenched objectionable character traits, they cannot bring themselves to do. On the one hand, such claims may seem false on account of demanding the infeasible, and insisting otherwise may seem to amount to objectionable unworldliness – to chasing “pies in the sky.” On the other hand, such claims may seem true in spite (...) of making infeasible demands, and insisting otherwise may seem to amount to treating the agents in question with undue lenience – to mistakenly letting them “off the hook.” What is going on? One possibility is that we are making a mistake. I explore the alternative hypothesis that our ambivalent reactions, far from involving any mistake, are entirely consistent and appropriate. Rather than some single privileged ought such that the idea that “ought” implies “feasible” is either true or false, there are simply different oughts that are supposed to be capable of operating in the service of, and playing distinct roles associated with, what I shall call different core normative practices. In particular, there is a) some salient core practice-serving ought for which it’s true that “ought” implies “feasible” and b) some other salient core practice-serving ought for which it’s false that “ought” implies “feasible.” I sketch a framework for understanding different core practice-serving oughts in general and then use this framework to consider which particular core practice-serving oughts might be capable of vindicating our ambivalence. I begin by considering and rejecting a prevalent and prima facie promising account according to which the relevant oughts are the prescriptive ought and the evaluative ought. I then propose a different account that holds that the oughts we need are instead the deliberative ought and the hypological ought. (shrink)

The concept of missed care refers to an irrefragable truth that required nursing care, which is left undone, occurs in the delivery of health care. As a technical concept, missed care offers nurses the opportunity to articulate a problematic experience. But what are we to make of missed care from an ethical perspective? Can nurses be held morally responsible for missed care? Ethically speaking, it is generally accepted that if a person has a moral obligation to do something, s/he needs (...) to have the capacity to do it. If a person does not have the capacity to fulfil a moral obligation, then s/he cannot be held responsible for failing to do so. This is captured by the “ought implies can” (OIC) principle. This paper brings the OIC principle to the forefront of the discussion on missed care. It is contended that nurses – qua moral agents – may be discharged from a moral obligation to carry out a required caring act because of some inability that is not of their making and therefore may not be morally responsible for missed care. However, the OIC principle may not be applied to all situations of missed care depending on their causes. In addition, following in the thought of Sapontzis (The Southern Journal of Philosophy, 1991, XXIX, 383–393) it is contended that when an original obligation to deliver a required act of care cannot be fulfilled, other obligations may be generated as summed up in the “Principle of Making Amends” and the “Principle of Appropriate Feeling.” It is the view of this paper that these further principles could prevent the OIC principle from being used to simply excuse omissions of care from a normative standard and could support the view that nurses continue to have alternative obligations to make amends and to respond with appropriate feelings to missed care. (shrink)

The moral principle that Ought Implies Can (“OIC”) is often assumed without argument in normative discourse. Is this assumption defensible? Some would argue that it is not, as there are many purported counterexamples against it in the literature. However, OIC is not so much a single principle as rather a family of them. In this paper, I will argue that, while not every OIC-type principle is defensible, at least one of them may be. I defend the cognate moral principle (...) that Ought Implies Can or Could Have (“OICCH”). I first show that it is able to circumvent the traditional counterexamples to OIC. And then I show that OICCH is even more plausible than some of the best alternative OIC-type principles to date. The upshot of this paper is that those who find OIC compelling should consider accepting OICCH instead. (shrink)

This book examines three issues: the principle of ought implies can ; the principle of alternate possibilities ; and Kant’s views on the duty to promote one’s own happiness. It argues that although Kant was wrong to deny such a duty, the part of his denial that rests on a conception of duty incorporating both OIC and PAP is sound.

This paper argues that a standard analysis of modals from formal semantics suggests a solution to the detaching problem — the problem of whether un-embedded 'ought'-claims can "detach" (be derived) from hypothetical imperatives and their antecedent conditions. On a broadly Kratzerian analysis, modals have a skeletal conventional meaning and receive a particular reading (e.g., deontic, epistemic, teleological) only relative to certain forms of contextual supplementation. I argue that 'ought'-claims can detach — subject to an important qualification — but (...) only as long as the 'ought's in the conditional premise and conclusion are interpreted relative to the same ordering sources. Although modus ponens can be shown to fail with hypothetical imperatives, the cases in question do not constitute a failure of detachment in the sense that ethicists have cared about. Rival wide-scoping accounts are proven to be linguistically problematic. They make incorrect predictions about the meanings of hypothetical imperatives, and founder in response to quantificational variants of the detaching problem. (shrink)

The ‘No Ought From Is’ principle (or ‘NOFI’) states that a valid argument cannot have both an ethical conclusion and non-ethical premises. Arthur Prior proposed several well-known counterexamples, including the following: Tea-drinking is common in England; therefore, either tea-drinking is common in England or all New Zealanders ought to be shot. My aim in this paper is to defend NOFI against Prior’s counterexamples. I propose two novel interpretations of NOFI and prove that both are true.

Some intuitive normative principles raise vexing 'detaching problems' by their failure to license modus ponens. I examine three such principles (a self-reliance principle and two different instrumental principles) and recent stategies employed to resolve their detaching problems. I show that solving these problems necessitates postulating an indefinitely large number of senses for 'ought'. The semantics for 'ought' that is standard in linguistics offers a unifying strategy for solving these problems, but I argue that an alternative approach combining an (...) end-relational theory of normativity with a comparative probabilistic semantics for 'ought' provides a more satisfactory solution. (shrink)

In Oughts and Thoughts, Anandi Hattiangadi provides an innovative response to the argument for meaning skepticism set out by Saul Kripke in Wittgenstein on ...

Some philosophers hold that „ought‟ is ambiguous between a sense expressing a propositional operator and a sense expressing a relation between an agent and an action. We defend the opposing view that „ought‟ always expresses a propositional operator against Mark Schroeder‟s recent objections that it cannot adequately accommodate an ambiguity in „ought‟ sentences between evaluative and deliberative readings, predicting readings of sentences that are not actually available. We show how adopting an independently well-motivated contrastivist semantics for „ (...) class='Hi'>ought‟, according to which „ought‟ is always relativized to a contrast set of relevant alternatives, enables us to explain the evaluative-deliberative ambiguity and why the availability of these readings depends on sentential grammar. (shrink)

According to ‘ought’ implies ‘can’ (OIC), your obligation can never be to do what you cannot do. In a recent attack on OIC, Graham has argued that intuitions about justified intervention can help us determine whether the agent whose actions we use force to prevent would have acted permissibly or not. These intuitions, he suggests, cause trouble for the idea that you can be obligated to refrain from doing what you can refrain from doing. I offer a defense of (...) OIC and explain how non-consequentialists can accommodate his intuitions about his cases. (shrink)

While philosophers generally accept some version of the principle ‘ought’ implies ‘can’, recent work in experimental philosophy and cognitive science provides evidence against a presupposition or a conceptual entailment from ‘ought’ to ‘can’. Here, we review some of this evidence, its effect on particular formulations of the principle, and future directions for cognitive scientists and philosophers.

Suppose that it would be best if some set of people all did A, significantly worse if they all did B, and worst of all if some did A while some did B. Now suppose that they’re all going to do B, regardless of what the others do. It seems as though each of these people ought to pick B, given what the others are going to do. Yet it also seems as though something has gone wrong. This leads (...) to a puzzle: how can it be wrong for everyone to act as they ought? In this paper, I resolve this puzzle by arguing that there are joint ‘oughts’ which apply irreducibly to pluralities of agents, and which can pull in different directions to ‘oughts’ holding of given individuals; even if everyone individually ought to pick B, what they jointly ought to do is all pick A. (shrink)

Abstract.According to the normative theory of legal science, juristic ought‐sentences describe rules, since legal science just deals with rules, and rules cannot be described but by means of ought‐sentences. The author challenges this view. Two different constructions of “describing rules” are proposed: Namely, either interpreting or stating the validity of rules. “Interpreting rules,” in its turn, can be understood in three different senses: listing all the possible meanings of rule‐formulations, reporting the different interpretations a rule‐formulation has in fact (...) received by courts, or ascribing meaning to rule‐formulations. However, the author argues that ought‐sentences are not the proper tools to accomplish such tasks. At the same time, juristic ought‐sentences cannot be understood as validity statements, since they neither mention any rule whatsoever, nor include the term “valid.” Further, if validity‐statements were ought‐sentences, their logical behaviour would reflect the logic of rules themselves. However, as the late Kelsen argued, things do not run this way, since two inconsistent ought‐sentences, if understood as validity statements, can paradoxically both be true, as well as both false. Hence, validity‐statements cannot be reduced to ought‐sentences iterating the rules which they (are supposed to) refer to. (shrink)

Despite increasing prominence, ‘ought’-contextualism is regarded with suspicion by most metaethicists. As I’ll argue, however, contextualism is a very weak claim, that every metaethicist can sign up to. The real controversy concerns how contextualism is developed. I then draw an oft-overlooked distinction between “parochial” contextualism—on which the contextually-relevant standards are those that the speaker, or others in her environment, subscribe to—and “aspirational” contextualism—on which the contextually-relevant standards are the objective standards for the relevant domain. However, I argue that neither (...) view is acceptable. I suggest an original compromise: “ecumenical contextualism”, on which some uses of ‘ought’ are parochial, others aspirational. Ecumenical contextualism is compatible with realism or antirealism, but either combination yields interesting results. And though it’s a cognitivist view, it is strengthened by incorporating an expressivist insight: for robustly normative usages of ‘ought’, the contextually-relevant standards must be endorsed by the speaker. (shrink)

Objectivists and perspectivists disagree about the question of whether what an agent ought to do depends on the totality of facts or on the agent’s limited epistemic perspective. While objectivism fails to account for normative guidance, perspectivism faces the challenge of explaining phenomena (occurring most notably in advice, but also in first-personal deliberation) in which the use of “ought” is geared to evidence that is better than the evidence currently available to the agent. This paper aims to defend (...) perspectivism by developing a perspectivist account that captures the phenomena in question. (shrink)

I argue first that some propositions are obligatory without being obligatory for anyone (i.e., they are _impersonally_ obligatory): if each of us has promised to vote and thus has an obligation to vote, then it is obligatory (i.e., morally required) that we all vote, but it is not obligatory _for anyone_ that we all vote (because, for example, what is obligatory for you is that _you _vote, not that we _all_ vote). I argue next that “ought-implies-can” fails for_ impersonal (...) _obligatoriness: if each of us has promised to (and can) finish first in a given race, and thus it is impersonally obligatory that we all finish first (i.e., that we all finish at the same time), it does not follow that anyone (or we) can make it the case that we all finish first (we may be unable to coordinate). I defend instead the following principle: if a proposition is (impersonally) obligatory—or forbidden—at time _t_, then it is _historically contingent _at _t_ (i.e., both the proposition and its negation are logically compatible with the history of the world up to and including _t_). (shrink)

I defend a novel way of working out the Balancing View of Ought, that is, the view that whether one ought to take some action depends on nothing but the balance of the reasons for the action and those against it or for its alternatives. I show that the Balancing View needs to be complemented by certain principles of reason transmission, at least one of which might seem rather surprising. The result is an attractive theoretical package that allows (...) for compelling explanations of noteworthy normative phenomena, including ones that the Balancing View has been claimed to be at odds with. (shrink)

I assess a series of arguments intended to show that 'ought' implies 'can'. Two are rooted in uses of 'ought' in contexts of deliberation and command. A third draws on the distinctive resources of deontic logic. I show that, in each case, the arguments leave scope for forms of infinite moral consciousness—forms of moral consciousness in which a moral obligation retains its authority even in the face of the conviction that the obligation is impossible to fulfil. In this (...) respect the paper sides with Martin Luther against Erasmus and Kant. (shrink)

I report the results of a follow-up study, designed to address concerns raised by Kurthy and Lawford-Smith in response to my original study on intuitions about moral obligation (ought) and ability (can). Like the results of the original study, the results of the follow-up study do not support the hypothesis that OIC is intuitive. The results of both studies suggest that OIC is probably not a principle of ordinary moral cognition. As I have argued in my paper, I take (...) this to mean that OIC can no longer be taken as axiomatic. It must be argued for without appealing to intuitions. (shrink)

Encyclopedia article on the meaning of 'ought'.

I defend the following version of the ought-implies-can principle: (OIC) by virtue of conceptual necessity, an agent at a given time has an (objective, pro tanto) obligation to do only what the agent at that time has the ability and opportunity to do. In short, obligations correspond to ability plus opportunity. My argument has three premises: (1) obligations correspond to reasons for action; (2) reasons for action correspond to potential actions; (3) potential actions correspond to ability plus opportunity. In (...) the bulk of the paper I address six objections to OIC: three objections based on putative counterexamples, and three objections based on arguments to the effect that OIC conflicts with the is/ought thesis, the possibility of hard determinism, and the denial of the Principle of Alternate Possibilities. (shrink)

According to the Ought-Implies-Can principle (OIC), an agent ought to perform a certain action only if the agent can perform that action. Proponents of OIC interpret this supposed implication in several ways. Some argue that the implication in question is a logical one, namely, entailment. Some think that the relation between ‘ought’ and ‘can’ is a relation of presupposition. Still others argue that ‘ought’ conversationally implicates ‘can’. Opponents of OIC offer a variety of counterexamples in an (...) attempt to show that there are cases in which an agent ought to perform a certain action even though she cannot perform that action. Such counterexamples often involve either culpable or nonculpable inability. In cases of culpable inability, the agent renders herself unable to fulfill an obligation. For example, a student is unable to submit a paper on the due date because she procrastinated until it became too late to write a paper by the assigned deadline. In cases of non-culpable inability, the agent somehow becomes unable to fulfill an obligation, through no fault of her own. For example, an agent becomes unable to pay back a loan to a bank because she was robbed on her way to the bank. This paper attempts to offer counterexamples to OIC of a sort different from the one discussed by opponents of OIC so far. If these counterexamples are correct, then they seem to suggest that there are cases in which an agent has an obligation to perform an action even though she may not be able to perform that action, and thus OIC is false. In other words, ‘ought’ does not imply ‘can’. (shrink)

There are two central kinds of epistemological mistakes: believing things you shouldn’t, and failing to believe things that you should. The knowledge-first program offers a canonical explanation for the former: if you believe something without knowing it, you violate the norm to believe only that which you know. But the explanation does not extend in any plausible way to a story about what’s wrong with suspending judgment when one ought to believe. In this paper I explore prospects for a (...) knowledge-centering account of positive epistemic norms that describe epistemic duties to believe. (shrink)

We propose a critique ofnormativism, defined as the idea that human thinking reflects a normative system against which it should be measured and judged. We analyze the methodological problems associated with normativism, proposing that it invites the controversial “is-ought” inference, much contested in the philosophical literature. This problem is triggered when there are competing normative accounts (the arbitration problem), as empirical evidence can help arbitrate between descriptive theories, but not between normative systems. Drawing on linguistics as a model, we (...) propose that a clear distinction between normative systems and competence theories is essential, arguing that equating them invites an “is-ought” inference: to wit, supporting normative “ought” theories with empirical “is” evidence. We analyze in detail two research programmes with normativist features – Oaksford and Chater's rational analysis and Stanovich and West's individual differences approach – demonstrating how, in each case, equating norm and competence leads to an is-ought inference. Normativism triggers a host of research biases in the psychology of reasoning and decision making: focusing on untrained participants and novel problems, analyzing psychological processes in terms of their normative correlates, and neglecting philosophically significant paradigms when they do not supply clear standards for normative judgement. For example, in a dual-process framework, normativism can lead to a fallacious “ought-is” inference, in which normative responses are taken as diagnostic of analytic reasoning. We propose that little can be gained from normativism that cannot be achieved by descriptivist computational-level analysis, illustrating our position with Hypothetical Thinking Theory and the theory of the suppositional conditional. We conclude that descriptivism is a viable option, and that theories of higher mental processing would be better off freed from normative considerations. (shrink)

In this paper, we investigate the ‘ought implies can’ thesis, focusing on explanations and interpretations of OIC, with a view to clarifying its uses and relevance to legal philosophy. We first review various issues concerning the semantics and pragmatics of OIC; then we consider how OIC may be incorporated in Hartian and Kelsenian theories of the law. Along the way we also propose a taxonomy of OIC-related claims.

The word 'ought' is one of the core normative terms, but it is also a modal word. In this book Matthew Chrisman develops a careful account of the semantics of 'ought' as a modal operator, and uses this to motivate a novel inferentialist account of why ought-sentences have the meaning that they have. This is a metanormative account that agrees with traditional descriptivist theories in metaethics that specifying the truth-conditions of normative sentences is a central part of (...) the explanation of their meaning. But Chrisman argues that this leaves important metasemantic questions about what it is in virtue of which ought-sentences have the meanings that they have unanswered. His appeal to inferentialism aims to provide a viable anti-descriptivist but also anti-expressivist answer to these questions. (shrink)

According to a naive view sometimes apparent in the writings of moral philosophers, 'ought' often expresses a relation between agents and actions—the relation that obtains between an agent and an action when that action is what that agent ought to do. It is not part of this naive view that 'ought' always expresses this relation—adherents of the naive view are happy to allow that 'ought' also has an evaluative sense, on which it means, roughly, that were (...) things ideal, some proposition would be the case. What is important to the naive view is that there is also a deliberative sense of 'ought', on which it relates agents to actions. In contrast, logically and linguistically sophisticated philosophers have typically rejected this naive view. According to them, there is no argument-place for an agent in any relation expressed by 'ought', nor is there any argument-place for an action. According to this view, if Jim ought to jam, that is not because there is a special distinctive deliberative ought relation between Jim and jamming; rather, it is because a certain proposition ought to be the case: namely, that Jim jams. This essay defends the naive view, by first arguing that there are two distinct normative senses of 'ought', which actually exhibit different syntactic behavior, and then going on to argue that the deliberative sense of 'ought' relates agents to actions, rather than to propositions. It closes by drawing lessons for a range of issues in moral theory. (shrink)

I investigate collective intentionality (CI) through the “Ought” implies “Can” (OIC) principle. My leading question is does OIC impose any further requirement on CI? In answering the challenge inside a Searlean framework, I realize that we need to clarify what CI's structure is and what kind of role the agents joining a CI-act have. In the last part of the paper, I put forward an (inverted) Hartian framework to allow the Searlean CI theory to be agent sensitive and cope (...) with the problems that emerged. (shrink)

I suggest a unified account of conditional oughts and of contrastive reasons. The core of the account is an explanation of facts about conditional oughts in terms of facts about contrastive reasons, and a reduction of contrastive reasons to non-contrastive reasons. In rejecting contrastivism about reasons, the account is consistent with orthodoxy about reasons. Moreover, it extends a standard view of how oughts and reasons are related to one another, and it makes sense of important and explanatorily recalcitrant phenomena. To (...) the extent to which the account involves an explanation of facts about conditional oughts, it does not directly compete with semantic analyses of statements about conditional oughts. However, as I indicate in passing, the account coheres well with an important type of such analyses, while it is inconsistent with others. (shrink)

Hume seems to claim that there does not exist a valid argument that has all non-ethical sentences as premises and an ethical sentence as its conclusion. Starting with Prior, a number of counterexamples to this claim have been proposed. Unfortunately, all of these proposals are controversial. Even the most plausible have a premise that seems like it might be an ethical sentence or a conclusion that seems like it might be non-ethical. Since it is difficult to tell whether any of (...) these counterexamples are genuine, we need a taxonomy that sorts out ethical sentences from non-ethical ones. We need to know the difference between an ‘Is’ and an ‘Ought’. In the first part of the paper, I establish the need for a taxonomy. I consider some of the most influential ‘Is’–‘Ought’ derivations. These include proposals by Prior and Searle. I argue that each proposal has a premise whose status as ethical or non-ethical is difficult to determine. In the second part of the paper, I consider taxonomies proposed by Karmo and Maitzen. I argue against both taxonomies. I end with the claim that we need a taxonomy of ethical sentences and that none of the current proposals are adequate. (shrink)

This chapter focuses on one of the common fallacies in Western philosophy called the 'is/ought fallacy (IOF)'. Some philosophers conclude that the IOF is not a logical problem but an epistemological one, meaning that even if inferences like this one are logically valid, they cannot be used epistemologically to warrant anyone's real‐life moral beliefs. Arguments do not warrant their conclusions unless the premises of those arguments are themselves warranted, and in the real world, they say, no one would ever (...) be warranted in believing premise. Charles Pigden argues for the illegitimacy of the move from is to ought, saying that we should understand David Hume as pointing to the conservativeness of logic. According to Pigden, logic is conservative in that “the conclusions of a valid inference are contained within the premises. You do not get out what you have not put in”. (shrink)

A thorny question surrounding the meaning of ought concerns a felt distinction between deontic uses of ought that seem to evaluate a state of affairs versus those that seem to describe a requirement or obligation to perform an action, as in and, respectively. There ought not be childhood death and disease. You ought to keep that promise. Various accounts have been offered to explain the contrast between “agentive” and “non-agentive” ought sentences. One such account is (...) the Agency-in-the-Prejacent theory, which traces the difference to a particular kind of ambiguity in the prejacent. This theory has been criticized as linguistically unviable. Indeed, I level a few novel complaints against AIP myself in the present paper. But AIP has a kernel of genuine insight which allows us to explain the contrast—that the distinction between agentive and non-agentive ought sentences owes in part to the way natural language encodes information about agency. I develop this idea into a novel account that, like AIP, traces the contrast to an ambiguity in the complement of the modal. However, according to the view I propose, the Coercion View, a linguistically-motivated coercion operation produces the necessary grammatical conditions for agentive ought, which in turn allow a kind of variadic function operator in the style of to produce the semantic effect we see on display in agentive readings of ought. Having explained the mechanism by which we get this structure, I show that it corroborates some of the central intuitions underwriting agentive ought. I submit that the Coercion View offers an explanation of agentive ought to take at least as seriously as any of its competitors. (shrink)

The notion of what an agent ought to do at a moment is generalized to yield a notion of what the agent ought to do over extended periods of time. This requires us to develop the notion of a strategy as a function from moments to actions available at those moments and appropriate notions of strategic dominance. A strategic ought operator is introduced and used to analyze the debate between actualists and possibilists concerning the ways in which (...) an agent's obligations depend on his or her future actions. (shrink)

Scepticism about ought simpliciter is the view that there is no such thing as what one ought simpliciter to do. Instead, practical deliberation is governed by a plurality of normative standpoints, each authoritative from their own perspective but none authoritative simpliciter. This paper aims to resist such scepticism. After setting out the challenge in general terms, I argue that scepticism can be resisted by rejecting a key assumption in the sceptic’s argument. This is the assumption that standpoint-relative (...) class='Hi'>ought judgments bring with them a commitment to act in accordance with those judgments. Instead, I propose an alternative account of our normative concepts according to which only ought simpliciter judgments commit one to acting in accordance with those judgments. In addition to answering the sceptical challenge, the proposal offers an independently motivated account of what makes a concept normatively authoritative. (shrink)

The important question of the legality of the state obliging trial incompetent defendants to receive competency-restoring treatment against their wishes, is one that has received much attention by legal scholars. Surprisingly, however, little attention has been paid to the, in many ways more fundamental, moral question of whether the state ought to administer such treatments. The aim of this paper is to start filling this gap in the literature. I begin by offering some reasons for thinking it morally acceptable (...) to, at least sometimes, oblige trial-incompetent defendants to receive competency-restoring treatments. The paper then discusses whether three prominent arguments (and their variations) offered by legal scholars against using non-consensual treatment to restore trial competence provide grounds for thinking there to be a general moral prohibition against these treatments. I argue that they do not. (shrink)

According to many philosophers there are only pro tanto oughts to believe relative to a standard of assessment: there are epistemic oughts to believe, moral oughts to believe, prudential oughts to believe etc. But there are no oughts to believe simpliciter. Many of the same philosophers who hold this view, also hold that ought to believe is to be understood deontologically – such that if S violates such an ought without excuse, S is blameworthy for doing so. I (...) here argue that on a deontological understanding of ought to believe there must be ought to believe simpliciter and that it is the violation of this ought that determines whether we are to blame for our beliefs. (shrink)

In this paper, I demonstrate that Kant's commitment to an asymmetry between the control conditions for praise and blame is explained by his endorsement of the principle Ought Implies Can (OIC). I argue that Kant accepts only a relatively weak version of OIC and that he is hence committed only to a relatively weak requirement of alternate possibilities for moral blame. This suggests that whether we are transcendentally free is irrelevant to questions about moral permissibility and moral blameworthiness.

An analogy is developed between action in an indeterministic setting and choice under uncertainty, as it is studied in decision theory. Various dominance relations among actions are explored, and used both to provide a semantic account of what agents ought to do and to formulate a notion of dominance act utilitarianism. The ideas are related to problems involving independence, conditionals, and sure‐thing reasoning.

Those who want to deny the ‘ought implies can’ principle often turn to weakened views to explain ‘ought implies can’ phenomena. The two most common versions of such views are that ‘ought’ presupposes ‘can’, and that ‘ought’ conversationally implicates ‘can’. This paper will reject both views, and in doing so, present a case against any pragmatic view of ‘ought implies can’. Unlike much of the literature, I won't rely on counterexamples, but instead will argue that (...) each of these views fails on its own terms. ‘Ought’ and ‘can’ do not obey the negation test for presupposition, and they do not obey the calculability or the cancelability tests for conversational implicature. I diagnose these failures as partly a result of the importance of the contrapositive of ‘ought implies can’. I end with a final argument emphasizing the role the principle plays in moral thinking, and the fact that no pragmatic account can do it justice. (shrink)