Equations reloaded

Cyprien Mangin 1, 2 Matthieu Sozeau 1, 2
1 PI.R2 - Design, study and implementation of languages for proofs and programs
Inria de Paris, CNRS - Centre National de la Recherche Scientifique, UPD7 - Université Paris Diderot - Paris 7, PPS - Preuves, Programmes et Systèmes
Abstract : Equations is a plugin for the Coq proof assistant which provides a notation for defining programs by dependent pattern-matching and structural or well-founded recursion. It additionally derives useful proof principles for demonstrating properties about them. We present a general design and implementation that provides a robust and expressive function definition package as a definitional extension to the Coq kernel. At the core of the system is a new simplifier for dependent equalities that can be reused to define enhanced versions of dependent elimination tactics. We introduce verified optimizations of the simplifier that allow generating smaller and simpler Equations definitions and proof terms for these tactics in general.
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Contributor : Matthieu Sozeau <>
Submitted on : Saturday, December 15, 2018 - 5:15:20 PM
Last modification on : Friday, April 19, 2019 - 4:54:54 PM


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  • HAL Id : hal-01671777, version 2



Cyprien Mangin, Matthieu Sozeau. Equations reloaded. 2018. ⟨hal-01671777v2⟩



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