Article ID Journal Published Year Pages File Type
4662370 Annals of Pure and Applied Logic 2012 11 Pages PDF
Abstract

We present a constructive analysis of the logical notions of satisfiability and consistency for first-order intuitionistic formulae. In particular, we use formal topology theory to provide a positive semantics for satisfiability. Then we propose a “co-inductive” logical calculus, which captures the positive content of consistency.

► We study satisfiability of a first-order intuitionistic formula. ► We give a constructive algebraic semantics for satisfiability. ► We extend usual sequent calculus by introducing a primitive for satisfiability. ► We prove a soundness and completeness result for our calculus.

Related Topics
Physical Sciences and Engineering Mathematics Logic
Authors
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