Titlebook: Investigations in Modal and Tense Logics with Applications to Problems in Philosophy and Linguistics; Dov M. Gabbay Book 1976 D. Reidel Pu

GEON

使人入神

Basic Tense SystemsThe language we are concerned with in this chapter is ., containing all the classical connectives and quantifyers and two unary operators; ., reading: ‘. will always be true’ and ., reading: ‘. has always been true’. Using the other connectives we can express ‘. will sometimes be true’ by ~ . ~ . and ‘. has sometime been true’ by ~ . ~ ..

COKE

浪蕩子

An Appendix on Propositional Statability OperatorsIn this chapter we deal with propositional calculi.

令人悲傷

Modicum

Selective FiltrationIn this chapter we deal with propositional systems only.

過(guò)時(shí)

conscience

看法等

Consequence Relationsomplete for a canonical semantics. We define the notion of one semantics being . in another and study the basic properties of this notion. The concepts of this chapter are generalizations of the various notions of logical system and possible world semantics found in the literature.

確保

General Theory of Unary Intensional Connectives. We therefore begin with the study of the general properties of one unary connective. Our plan is to study various possible .-logical systems ., with one unary connective and analyse their corresponding interpretations. The idea is to show a correspondence between possible additional conditions on