Type safety of rewrite rules in dependent types

10/30/2020 ∙ by Frédéric Blanqui, et al. ∙ 0

The expressiveness of dependent type theory can be extended by identifying types modulo some additional computation rules. But, for preserving the decidability of type-checking or the logical consistency of the system, one must make sure that those user-defined rewriting rules preserve typing. In this paper, we give a new method to check that property using Knuth-Bendix completion.

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