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| author | Frédéric Besson | 2019-03-28 15:24:33 +0100 |
|---|---|---|
| committer | Frédéric Besson | 2019-09-16 16:02:38 +0200 |
| commit | dfff69ef604e02703575cb1cb15b2f77eda5f0f4 (patch) | |
| tree | a18ae2078ecd8c3e7f46ae947b9d4ba8499b0704 /doc/changelog | |
| parent | 3d7de72f45ae2f8bcedbe1db0eb8870e58757b45 (diff) | |
Re-implementation of zify
The logic is implemented in OCaml. By induction over the terms,
guided by registered Coq terms in ZifyInst.v, it generates a rewriting
lemma. The rewriting is only performed if there is some progress. If
the rewriting fails (due to dependencies), a novel hypothesis is
generated.
This PR fixes #5155, fixes #8898, fixes #7886, fixes #10707, fixes #9848
ans fixes #10755.
The zify plugin is placed in the micromega directory.
(Though the reason is unclear, having it in a separate directory is
bad for efficiency.) efficiency impact.
There are also a few improvements of lia/lra that are piggybacked.
- more aggressive pruning of useless hypotheses
- slightly optimised conjunctive normal form
- applies exfalso if conclusion is not in Prop
- removal of Timeout in test-suite
Diffstat (limited to 'doc/changelog')
| -rw-r--r-- | doc/changelog/04-tactics/09856-zify.rst | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/doc/changelog/04-tactics/09856-zify.rst b/doc/changelog/04-tactics/09856-zify.rst new file mode 100644 index 0000000000..6b9143c77b --- /dev/null +++ b/doc/changelog/04-tactics/09856-zify.rst @@ -0,0 +1,7 @@ +- Reimplementation of the :tacn:`zify` tactic. The tactic is more efficient and copes with dependent hypotheses. + It can also be extended by redefining the tactic ``zify_post_hook``. + (`#9856 <https://github.com/coq/coq/pull/9856>`_ fixes + `#8898 <https://github.com/coq/coq/issues/8898>`_, + `#7886 <https://github.com/coq/coq/issues/7886>`_, + `#9848 <https://github.com/coq/coq/issues/9848>`_ and + `#5155 <https://github.com/coq/coq/issues/5155>`_, by Frédéric Besson). |