From f1e1f8155b552e9359fe60864f46155fca28a81b Mon Sep 17 00:00:00 2001 From: Hugo Herbelin Date: Wed, 21 Oct 2020 16:17:32 +0200 Subject: Fixes #13235: remove fragile tolerance for degenerate in-hyps clause. Co-Authored-By: Jim Fehrle --- doc/sphinx/proofs/writing-proofs/rewriting.rst | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) (limited to 'doc/sphinx') diff --git a/doc/sphinx/proofs/writing-proofs/rewriting.rst b/doc/sphinx/proofs/writing-proofs/rewriting.rst index f3f69a2fdc..3fe9fce8f5 100644 --- a/doc/sphinx/proofs/writing-proofs/rewriting.rst +++ b/doc/sphinx/proofs/writing-proofs/rewriting.rst @@ -274,9 +274,13 @@ simply :g:`t=u` dropping the implicit type of :g:`t` and :g:`u`. .. exn:: Too few occurrences. :undocumented: - .. tacv:: change @term {? {? at {+ @natural}} with @term} in @ident + .. tacv:: change @term {? {? at {+ @natural}} with @term} in @goal_occurrences - This applies the :tacn:`change` tactic not to the goal but to the hypothesis :n:`@ident`. + In the presence of :n:`with`, this applies :tacn:`change` to the + occurrences specified by :n:`@goal_occurrences`. In the + absence of :n:`with`, :n:`@goal_occurrences` is expected to + only list hypotheses (and optionally the conclusion) without + specifying occurrences (i.e. no :n:`at` clause). .. tacv:: now_show @term -- cgit v1.2.3