Studia Logica: An International Journal for Symbolic Logic, Vol. 103, No. 3 (June 2015), pp. 623-638 (16 pages) Within a weak system WKVS of intuitionistic analysis one may prove, using the Weak Fan ...
The problematic features of Quine's 'set' theories NF and ML are a result of his replacing the higher-order predicate logic of type theory by a first-order logic of membership, and can be resolved by ...
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