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Abductive Reasoning in Intuitionistic Propositional Logic via Theorem Synthesis
Published online by Cambridge University Press: 28 June 2022
Abstract
With help of a compact Prolog-based theorem prover for Intuitionistic Propositional Logic, we synthesize minimal assumptions under which a given formula formula becomes a theorem. After applying our synthesis algorithm to cover basic abductive reasoning mechanisms, we synthesize conjunctions of literals that mimic rows of truth tables in classical or intermediate logics and we abduce conditional hypotheses that turn the theorems of classical or intermediate logics into theorems in intuitionistic logic. One step further, we generalize our abductive reasoning mechanism to synthesize more expressive sequent premises using a minimal set of canonical formulas, to which arbitrary formulas in the calculus can be reduced while preserving their provability. Organized as a self-contained literate Prolog program, the paper supports interactive exploration of its content and ensures full replicability of our results.
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- Original Article
- Information
- Theory and Practice of Logic Programming , Volume 22 , Issue 5: 38th International Conference on Logic Programming Special Issue II , September 2022 , pp. 693 - 707
- Copyright
- © The Author(s), 2022. Published by Cambridge University Press
Footnotes
We thank the anonymous reviewers of ICLP’2022 for their constructive comments and suggestions.
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