Takashi Yagisawa

On the first day of the class for Introduction to Philosophy, your professor tells you that if you keep perfect attendance, complete every homework satisfactorily, participate in class discussion actively, and score 100% in every examination, you will certainly get an A+ for the course. You work hard and by the end of the semester, you think you have accomplished all these things. You are pleased. Why? Because you think as follows: “I have kept perfect attendance, completed every homework satisfactorily, participated in class discussion actively, and scored 100% in every exam. This means I get an A+ for the course because, as the professor said, if I keep perfect attendance, complete every homework satisfactorily, participate in class discussion actively, and score 100% in every exam, I get an A+ for the course.”.

When I assertively utter the sentence `Spot is a cat', the sentence I utter expresses a proposition. The truth condition of the proposition so expressed is determined by the semantic values of the singular term, `Spot', and the predicate, `is a cat'. If `Spot' refers to a certain particular entity E and `is a cat' expresses a certain particular property P, then the proposition in question is true if and only if E has P. Such is the theoretical cash value of reference. The referent of a given singular term generally figures in this manner in the truth condition of the proposition expressed by any sentence containing the singular term outside direct quotations and other referentially opaque contexts.1 Given this understanding of the notion of reference, I wish to address an important question: How is the reference of a proper name determined?

This paper aims to construct a logic of alternative-I that provides a proper conceptual framework for talk of possible-I in decision-making context, and thereby solves what we call the paradox of possible-I. The model of our logic, Alt-I model, is an adaptation of N. Belnap’s branching-time model, and the STIT (see to it that) operator defined on the model serves to represent choices and decisions made by actual and counterfactual agents. We conclude this paper by discussing the application of Alt-I model to the case of digital twins, digital copies of a person.

Meaning Solipsism says that it is possible for there to be a meaningful state without any other meaningful state. The meaning of such a solo meaningful state should be non-natural. The best strategy for establishing Meaning Solipsism is to argue for the determination of the meaning of a possible solo meaningful state via the set of entities the meaning of the state fits. Embracing merely possible and impossible entities is the most straightforward way to do so. Also, a good way to honor analayticities the meaning of a solo meaningful state gives rise to is to insist on certain facts about impossible entities as non-negotiable brute facts.

Call a sentential context semantically transparent if and only if all synonymous expressions are substitutable for one another in it salva veritate. Nathan Salmon has boldly advanced a refreshingly crisp semantic theory according to which belief contexts are semantically transparent. If he is right, belief contexts are much better behaved than widely suspected. Impressive as it is, this author does not believe that Salmon’s theory is completely satisfactory. This article tries to show that Salmon’s theory, in conjunction with a number of auxiliary but important claims he makes to buttress the theory, seems to lead to failure of semantic transparency of belief contexts.

Meaning Solipsism says that it is possible for there to be a meaningful state without any other meaningful state. The meaning of such a solo meaningful state should be non-natural. The best strategy for establishing Meaning Solipsism is to argue for the determination of the meaning of a possible solo meaningful state via the set of entities the meaning of the state fits. Embracing merely possible and impossible entities is the most straightforward way to do so. Also, a good way to honor analayticities the meaning of a solo meaningful state gives rise to is to insist on certain facts about impossible entities as non-negotiable brute facts.

Meaning Solipsism says that it is possible for there to be a meaningful state without any other meaningful state. The meaning of such a solo meaningful state should be non-natural. The best strategy for establishing Meaning Solipsism is to argue for the determination of the meaning of a possible solo meaningful state via the set of entities the meaning of the state fits. Embracing merely possible and impossible entities is the most straightforward way to do so. Also, a good way to honor analayticities the meaning of a solo meaningful state gives rise to is to insist on certain facts about impossible entities as non-negotiable brute facts.

My general contention is to defend the compositional principle of meaning--that the meaning of a complex expression is a function of the meanings of its parts --with respect to belief contexts, which do not always appear to allow salva veritate substitutivity of synonyms. I argue that this appearance is an illusion which results from confusing beliefs that are not about linguistic expressions with beliefs that are about linguistic expressions. In doing so, I invoke and elaborate the Gricean distinction between what a sentence means and what the speaker means in using the sentence