Możemy ponadto w prosty sposób wyrazić takie zdania jak „a istnieje”: (por. Hintikka 1959).
Przypisy
Bibliografia Bas C. van Frassen, Singualar terms, truth-value gaps, and free logic, „Journal of Philosophy”, 1966. Theodore Hailperin, Quantification theory and empty individual-domains, „Journal of Symbolic Logic”, 1953. Jaakko Hintikka, Existential presuppositions and existential commitments, „Journal of Philosophy”, 1959. Karel Lambert, Free logic: Selected essays, Cambridge: Cambridge UP. 2003. Andrzej Mostowski, On the rules of proof in the pure functional calculus of the first order, „Journal of Symbolic Logic”, 1951. Henry S. Leonard, The logic of existence, „Philosophical Studies”, 1956. Willard Van Orman Quine, Free logic, description, and virtual classes w: Selected Logic Papers, Harvard University Press, 1995.
Linki zewnętrzne
Free logics , Routledge Encyclopedia of Philosophy, rep.routledge.com [dostęp 2023-05-10].
Kategoria:Logika