diff options
| author | Erik Martin-Dorel | 2019-04-26 13:00:38 +0200 |
|---|---|---|
| committer | Erik Martin-Dorel | 2019-08-06 15:30:35 +0200 |
| commit | 75f93e90e95f049ae23023f39add16a861ae114b (patch) | |
| tree | 57980dc1d2c96b7770eb2118a438cca43e428d4d /doc/sphinx/proof-engine | |
| parent | 4e285a5d21633ecc47543c543043c31cd3be0a18 (diff) | |
[ssr] under: extend ssreflect.v to generalize iff to any setoid eq
* Add an extra test with an Equivalence.
* Update the doc accordingly.
Diffstat (limited to 'doc/sphinx/proof-engine')
| -rw-r--r-- | doc/sphinx/proof-engine/ssreflect-proof-language.rst | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/doc/sphinx/proof-engine/ssreflect-proof-language.rst b/doc/sphinx/proof-engine/ssreflect-proof-language.rst index ed980bd4de..0af23354cc 100644 --- a/doc/sphinx/proof-engine/ssreflect-proof-language.rst +++ b/doc/sphinx/proof-engine/ssreflect-proof-language.rst @@ -3756,8 +3756,9 @@ involves the following steps: the corresponding intro pattern :n:`@i_pattern__i` in each goal. 4. Then :tacn:`under` checks that the first n subgoals - are (quantified) equalities or double implications between a - term and an evar (e.g. ``m - m = ?F2 m`` in the running example). + are (quantified) Leibniz equalities or registered Setoid equalities + between a term and an evar (e.g. ``m - m = ?F2 m`` in the running + example). 5. If so :tacn:`under` protects these n goals against an accidental instantiation of the evar. |