Intuitionistic Strong Löb logic iSL is an intuitionistic modal logic with a provability
interpretation. We introduce GbuSL□, a terminating sequent calculus for iSL with the …

We address the problem of proof-search in the natural deduction calculus for Classical
propositional logic. Our aim is to improve the usual naïve proof-search procedure where …

The inverse method is a saturation based theorem proving technique; it relies on a forward
proof-search strategy and can be applied to cut-free calculi enjoying the subformula …

The inverse method is a saturation-based theorem-proving technique; it relies on a forward
proof-search strategy and can be applied to cut-free calculi enjoying the subformula …

JTabWb is a Java framework for develo** provers based on sequent or tableau calculi. It
provides a generic engine which searches for proof of a given goal driven by a user-defined …

We address the problem of proof-search in the natural deduction calculus for Intuitionistic
propositional logic. Our aim is to improve the usual proof-search procedure where …

Abstract Intuitionistic Propositional Logic is complete wrt Kripke semantics: if a formula is not
intuitionistically valid, then there exists a finite Kripke model falsifying it. The problem of …

We propose an internal calculus to check the satisfiability of a set of formulas in. Our
calculus directly supports model extraction and is designed so to implement a forward proof …

Focusing is a proof-theoretic device to structure proof search in the sequent calculus: it
provides a normal form to cut-free proofs in which the application of invertible and non …

Forward proof-search and Countermodel Construction in Intuitionistic Propositional Logic⋆
Page 1 Forward proof-search and Countermodel Construction in Intuitionistic Propositional …