Higher-Order Illative Combinatory Logic

Publisher: Cambridge University Press

E-ISSN: 1943-5886|78|3|837-872

ISSN: 0022-4812

Source: The Journal of Symbolic Logic, Vol.78, Iss.3, 2013-09, pp. : 837-872

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Abstract

We show a model construction for a system of higher-order illative combinatory logic thus establishing its strong consistency. We also use a variant of this construction to provide a complete embedding of first-order intuitionistic predicate logic with second-order propositional quantifiers into the system of Barendregt, Bunder and Dekkers, which gives a partial answer to a question posed by these authors.