Abstract
Claessen and Rósen have recently presented an automated theorem prover, intuit, for intuitionistic propositional logic which utilises a SAT-solver. We present a sequent calculus perspective of the theory underpinning intuit by showing that it implements a generalisation of the implication-left rule from the sequent calculus LJT, also known as G4ip and popularised by Roy Dyckhoff.
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Notes
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- 2.
This is the number of connectives, each conjunction counting for two [2].
- 3.
These effectful additions account for the distinction between \(R^0\), \(R^1\) and \(R^2\) above.
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Acknowledgment
This project has received funding from the European Union’s Horizon 2020 research and innovation programme under the Marie Skłodowska-Curie grant agreement No 689176.
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Fiorentini, C., Goré, R., Graham-Lengrand, S. (2019). A Proof-Theoretic Perspective on SMT-Solving for Intuitionistic Propositional Logic. In: Cerrito, S., Popescu, A. (eds) Automated Reasoning with Analytic Tableaux and Related Methods. TABLEAUX 2019. Lecture Notes in Computer Science(), vol 11714. Springer, Cham. https://doi.org/10.1007/978-3-030-29026-9_7
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