diff options
| author |  Emilio Jesus Gallego Arias <e+git@x80.org> | 2018-04-09 01:33:31 +0200 |
|---|---|---|
| committer | Emilio Jesus Gallego Arias <e+git@x80.org> | 2018-04-13 12:13:48 +0200 |
| commit | 2243c25c79ab19876ad74452c9cecc7dcc88c67c (patch) | |
| tree | f32573eb7d7c4dbdb4493e186bed87c80e61a747 /theories/Arith/Even.v | |
| parent | b68e0b4f9ba37d1c2fa5921e1d934b4b38bfdfe7 (diff) | |
[ltac] Deprecate nameless fix/cofix.
LTAC's `fix` and `cofix` do require access to the proof object inside
the tactic monad when used without a name. This is a bit inconvenient
as we aim to make the handling of the proof object purely functional.
Alternatives have been discussed in #7196, and it seems that
deprecating the nameless forms may have the best cost/benefit ratio,
so opening this PR for discussion.
See also #6171.
Diffstat (limited to 'theories/Arith/Even.v')
| -rw-r--r-- | theories/Arith/Even.v | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/theories/Arith/Even.v b/theories/Arith/Even.v index baf119732..a1d0e9fcc 100644 --- a/theories/Arith/Even.v +++ b/theories/Arith/Even.v @@ -38,7 +38,7 @@ Hint Constructors odd: arith. Lemma even_equiv : forall n, even n <-> Nat.Even n. Proof. - fix 1. + fix even_equiv 1. destruct n as [|[|n]]; simpl. - split; [now exists 0 | constructor]. - split. @@ -52,7 +52,7 @@ Qed. Lemma odd_equiv : forall n, odd n <-> Nat.Odd n. Proof. - fix 1. + fix odd_equiv 1. destruct n as [|[|n]]; simpl. - split. + inversion_clear 1. |