Abstract

The main aim of the paper is to discuss some recent definitions of lie and lying, particularly that proposed recently in Edukacja Filozoficzna by Andrzej Stępnik. First I point out that his proposals share common conviction that among other things one has to have intention to deceive someone in order to lie. But this is wrong since it is quite clear that in a case of bold-face lies one can lie without having this intention. And bold-face lies are lies. It follows that not only Stępnik’s definitions but all descriptive definitions of lies and lying sharing this condition are too narrow, so are inadequate. Instead of giving another descriptive definition of lying and lie, some précising definitions are proposed. According to first of them: A person x lies to y iff (i) x claims to y something that x doesn’t believe, and (ii) x doesn’t inform y that she doesn’t believe what she clams. According to another; A person x lies to y iff (i) by uttering something x expresses some propositional attitude (belief, desire, knowledge etc.), (ii) x doesn’t have this attitude, (ii) x doesn’t inform y that (ii) And the last states: A person x lies to y iff (i) x performs some speech act, (ii) some propositional attitude is one of the necessary conditions of sincery condition of this act, (iii) x doesn’t have this propositional attitude, (iv) x doesn’t inform y that (iii). We also propose crucial definition of claiming: A person x claims at a context C that p iff there is some sentence S of some language L (which x understands perfectly): (i) x utters S at C, (ii) according to semantic rules of L: uttering at C sentence S means that p, (iii) x is disposed at C to confirm the truthfulness of S. and expressing: A person x by uttering S expresses some kind of propositional attitude that p iff for all who are acquainted with proper linguistic or social convention is reasonable to attribute this kind of propositional attitude that p to x