interactive and automated theorem prover
Lean is an open source theorem prover and programming language.  It aims
to bridge the gap between interactive and automated theorem proving, by
situating automated tools and methods in a framework that supports user
interaction and the construction of fully specified axiomatic proofs.

Maintainer: Theo Buehler <tb@openbsd.org>

WWW: https://leanprover-community.github.io
