Lash 1.0 (System Description)

Chad E. Brown; Cezary Kaliszyk

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arXiv · 2205.06640

Lash 1.0 (System Description)

Chad E. Brown·Cezary Kaliszyk

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Abstract

Lash is a higher-order automated theorem prover created as a fork of the theorem prover Satallax. The basic underlying calculus of Satallax is a ground tableau calculus whose rules only use shallow information about the terms and formulas taking part in the rule. Lash uses new, efficient C representations of vital structures and operations. Most importantly, Lash uses a C representation of (normal) terms with perfect sharing along with a C implementation of normalizing substitutions. We describe the ways in which Lash differs from Satallax and the performance improvement of Lash over Satallax when used with analogous flag settings. With a 10s timeout Lash outperforms Satallax on a collection TH0 problems from the TPTP. We conclude with ideas for continuing the development of Lash.

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Chad E. Brown, Cezary Kaliszyk. 2022-05-13. Lash 1.0 (System Description). https://arxiv.org/abs/2205.06640

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