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Diffstat (limited to 'doc/sphinx/proof-engine')
| -rw-r--r-- | doc/sphinx/proof-engine/tactics.rst | 25 |
1 files changed, 9 insertions, 16 deletions
diff --git a/doc/sphinx/proof-engine/tactics.rst b/doc/sphinx/proof-engine/tactics.rst index 8f5c045929..b2ebd96607 100644 --- a/doc/sphinx/proof-engine/tactics.rst +++ b/doc/sphinx/proof-engine/tactics.rst @@ -264,17 +264,6 @@ These patterns can be used when the hypothesis is an equality: :n:`@simple_intropattern_closed`. :ref:`Example <intropattern_injection_ex>` -.. flag:: Bracketing Last Introduction Pattern - - For :n:`intros @intropattern_list`, controls how to handle a - conjunctive pattern that doesn't give enough simple patterns to match - all the arguments in the constructor. If set (the default), Coq generates - additional names to match the number of arguments. - Unsetting the flag will put the additional hypotheses in the goal instead, behavior that is more - similar to |SSR|'s intro patterns. - - .. deprecated:: 8.10 - .. _intropattern_cons_note: .. note:: @@ -1641,17 +1630,21 @@ name of the variable (here :g:`n`) is chosen based on :g:`T`. .. tacv:: instantiate (@natural := @term) - This variant allows to refer to an existential variable which was not named - by the user. The :n:`@natural` argument is the position of the existential variable - from right to left in the goal. Because this variant is not robust to slight - changes in the goal, its use is strongly discouraged. + This variant selects an existential variable by its position. The + :n:`@natural` argument is the position of the existential variable + *from right to left* in the conclusion of the goal. (Use one of + the variants below to select an existential variable in a + hypothesis.) Counting starts at 1 and multiple occurrences of the + same existential variable are counted multiple times. Because this + variant is not robust to slight changes in the goal, its use is + strongly discouraged. .. tacv:: instantiate ( @natural := @term ) in @ident instantiate ( @natural := @term ) in ( value of @ident ) instantiate ( @natural := @term ) in ( type of @ident ) These allow to refer respectively to existential variables occurring in a - hypothesis or in the body or the type of a local definition. + hypothesis or in the body or the type of a local definition (named :n:`@ident`). .. tacv:: instantiate |