coq - The formal proof system

Age	Commit message (Collapse)	Author
2020-05-18	[obligations] Pre-functionalize Program state	Emilio Jesus Gallego Arias
	In our quest to unify all the declaration paths, an important step is to account for the state pertaining to `Program` declarations. Whereas regular proofs keep are kept in a stack-like structure; obligations for constants defined by `Program` are stored in a global map which is manipulated by almost regular open/close proof primitives. This PR is in preparation for the switch to a purely functional state in #11836 ; the full switch requires deeper changes so it is helpful to have this PR preparing most of the structure. Most of the PR is routine; only remarkable change is that the hook for admitted obligations is now called explicitly in `finish_admitted` as it had to learn about the different types of proof_endings. Before, obligations set it in `start_lemma` but only used in the `Admitted` path.
2020-03-18	Update headers in the whole code base.	Théo Zimmermann
	Add headers to a few files which were missing them.
2019-06-17	Update ml-style headers to new year.	Théo Zimmermann

2019-05-02	Add union in Map interface	Maxime Dénès

2018-12-17	Add Map.find_opt	Gaëtan Gilbert

2018-02-27	Update headers following #6543.	Théo Zimmermann

2017-12-23	[lib] Split auxiliary libraries into Coq-specific and general.	Emilio Jesus Gallego Arias
	Up to this point the `lib` directory contained two different library archives, `clib.cma` and `lib.cma`, which a rough splitting between Coq-specific libraries and general-purpose ones. We know split the directory in two, as to make the distinction clear: - `clib`: contains libraries that are not Coq specific and implement common data structures and programming patterns. These libraries could be eventually replace with external dependencies and the rest of the code base wouldn't notice much. - `lib`: contains Coq-specific common libraries in widespread use along the codebase, but that are not considered part of other components. Examples are printing, error handling, or flags. In some cases we have coupling due to utility files depending on Coq specific flags, however this commit doesn't modify any files, but only moves them around, further cleanup is welcome, as indeed a few files in `lib` should likely be placed in `clib`. Also note that `Deque` is not used ATM.