English

Intuitionistic Sahlqvist theory for deductive systems

Logic 2025-02-05 v1

Abstract

Sahlqvist theory is extended to the fragments of the intuitionistic propositional calculus that include the conjunction connective. This allows us to introduce a Sahlqvist theory of intuitionistic character amenable to arbitrary protoalgebraic deductive systems. As an application, we obtain a Sahlqvist theorem for the fragments of the intuitionistic propositional calculus that include the implication connective and for the extensions of the intuitionistic linear logic.

Keywords

Cite

@article{arxiv.2208.00691,
  title  = {Intuitionistic Sahlqvist theory for deductive systems},
  author = {Damiano Fornasiere and Tommaso Moraschini},
  journal= {arXiv preprint arXiv:2208.00691},
  year   = {2025}
}

Comments

50 pages

R2 v1 2026-06-25T01:22:26.082Z