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| author |  Jason Gross <jgross@mit.edu> | 2017-04-03 12:27:58 -0400 |
|---|---|---|
| committer | Jason Gross <jgross@mit.edu> | 2017-04-03 12:27:58 -0400 |
| commit | 7e87e2654662355dec369076a4bb7dd13900300e (patch) | |
| tree | 9242ac2cf1a0a4b3a46357e78699f8e4d90c4176 /src/Util/Sigma.v | |
| parent | 0d2dc65a8264c270b76243d8b9a735d14520a070 (diff) | |
Add proj2_sig_map
Diffstat (limited to 'src/Util/Sigma.v')
| -rw-r--r-- | src/Util/Sigma.v | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/src/Util/Sigma.v b/src/Util/Sigma.v index 49e2cf6c6..693b8ef00 100644 --- a/src/Util/Sigma.v +++ b/src/Util/Sigma.v @@ -232,6 +232,8 @@ Definition lift2_sig {A B C} (P:A->B->C->Prop) Definition projT2_map {A P Q} (f : forall a, P a -> Q a) (x : @sigT A P) : @sigT A Q := let 'existT a p := x in existT Q a (f a p). +Definition proj2_sig_map {A} {P Q : A -> Prop} (f : forall a, P a -> Q a) (x : @sig A P) : @sig A Q + := let 'exist a p := x in exist Q a (f a p). (** ** Useful Tactics *) (** *** [inversion_sigma] *) |