Coq is a formal proof management system. It provides a formal language to write
mathematical definitions, executable algorithms and theorems together with an
environment for semi-interactive development of machine-checked proofs.
Please see https://coq.inria.fr/download.
Information on how to build and install from sources can be found in
The sources of the documentation can be found in directory
doc/README.md to learn more about the documentation,
in particular how to build it. The
documentation of the last released version is available on the Coq
web site at coq.inria.fr/documentation.
See also Cocorico (the Coq wiki),
and the Coq FAQ,
for additional user-contributed documentation.
The documentation of the master branch is continuously deployed. See:
of the reference manual explains the differences and the
incompatibilities of each new version of Coq. If you upgrade Coq,
please read it carefully as it contains important advice on how to
approach some problems you may encounter.
Questions and discussion
We have a number of channels to reach the user community and the
Our Zulip chat, for casual and high traffic discussions.
Our Discourse forum, for more structured and easily browsable discussions and Q&A.
Our historical mailing list, the Coq-Club.
See also coq.inria.fr/community, which
lists several other active platforms.
Please report any bug / feature request in our issue tracker.
To be effective, bug reports should mention the OCaml version used
to compile and run Coq, the Coq version (
coqtop -v), the configuration
used, and include a complete source example leading to the bug.
Contributing to Coq
Guidelines for contributing to Coq in various ways are listed in the contributor's guide.
Information about release plans is at https://github.com/coq/coq/wiki/Release-Plan
Help the Coq community grow and prosper by becoming a sponsor! The Coq
Consortium can establish sponsorship contracts
or receive donations. If you want to take an active role in shaping Coq's
future, you can also become a Consortium member. If you are interested, please
get in touch!