This study examines BDI logics in the context of Gabbay's fibring semantics. We show that dovetailing can be adopted as a semantic methodology to combine BDI logics. We develop a set of interaction axioms that can capture static as well as dynamic aspects of the mental states in BDI systems, using Catach's incestual schema G^[a, b, c, d]. Further we exemplify the constraints required on fibring function to capture the semantics of interactions among modalities. The advantages of having a fibred (...) approach is discussed in the final section. (shrink)

1. The present paper is a continuation of my “Self-Ownership, World Ownership, and Equality,” which began with a description of the political philosophy of Robert Nozick. I contended in that essay that the foundational claim of Nozick's philosophy is the thesis of self-ownership, which says that each person is the morally rightful owner of his own person and powers, and, consequently, that each is free to use those powers as he wishes, provided that he does not deploy them aggressively against (...) others. To be sure, he may not harm others, and he may, if necessary, be forced not to harm them, but he should never be forced to help them, as people are in fact forced to help others, according to Nozick, by redistributive taxation. (shrink)

Open peer commentary on the article “Examining the Role of Re-Presentation in Mathematical Problem Solving: An Application of Ernst von Glasersfeld’s Conceptual Analysis” by Victor V. Cifarelli & Volkan Sevim. Upshot: The key philosophical premise of von Glasersfeld’s radical constructivism is not necessary to the insightful conceptual analysis presented by Cifarelli and Sevim, which could benefit from abandoning it.

The function of philosophy may be circumscribed as consisting in ma king a keen analysis of the peculiar nature of the crisis-situation, as it has existed among mell throughout th~ centuries of human history, and as it manifested itself in definite ways at the various stages of this his tory. That is to say, philosophy may be regarded as the discipline which, again and again, will have to determine the authenticity of man's ex istence in the light of the changing (...) conditions of life, i. e., man's chang ing needs and interests. Fundamentally, these needs may be regarded as being of a material, an intellectual, an aesthetical and a spiritual kind. On the grounds of the crisis, which inevitably exists among men on ac count of the controversial nature of their various truth-perspectives, as they are postulated on a personal level, in the sciences, in history, in the fine arts and in theology, man creates and re-creates the goods of civilization and the cultural values. The task of philosophy consists then in making an ever new assessment of man's changing needs, in terests and aspirations on the basis of the specific conflicts and prob lems with which man wrestles at a certain historical stage. It is in this way that the important philosophical systems were constructed, which we still admire to-day. (shrink)