Mathematical logic, set theory, lattices and universal algebra form an interconnected framework that underpins much of modern mathematics. At its heart, mathematical logic provides rigorous formal ...
We discuss the work of Paul Bernays in set theory, mainly his axiomatization and his use of classes but also his higher-order reflection principles. Journal Information The Bulletin of Symbolic Logic ...
This is a preview. Log in through your library . Abstract We investigate, for several modal logics but concentrating on KT, KD45, S4 and S5, the set of formulas B for which Ì…B is provably equivalent ...
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