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authorGravatar Emilio Jesus Gallego Arias <e+git@x80.org>2017-10-05 14:20:28 +0200
committerGravatar Emilio Jesus Gallego Arias <e+git@x80.org>2017-10-05 23:47:32 +0200
commit6526933e3d6a6392aa6bd5235ea0180bb68b6f94 (patch)
tree83fdc73e5ef1c0e7bdb8b083b7887d09855ce38d /theories/FSets
parent2aac4ae818fec0d409da31ef9da83796d871d687 (diff)
[ltac] Warning for deprecated `Add Setoid` and `Add Morphism` forms.
The manual has long stated that these forms are deprecated. We add a warning for them, as indeed `Add Morphism` is an "proof evil" [*] command, and we may want to remove it in the future. We've also fixed the stdlib not to emit the warning. [*] https://ncatlab.org/nlab/show/principle+of+equivalence
Diffstat (limited to 'theories/FSets')
-rw-r--r--theories/FSets/FSetProperties.v2
1 files changed, 1 insertions, 1 deletions
diff --git a/theories/FSets/FSetProperties.v b/theories/FSets/FSetProperties.v
index 25b042ca9..0041bfa1c 100644
--- a/theories/FSets/FSetProperties.v
+++ b/theories/FSets/FSetProperties.v
@@ -762,7 +762,7 @@ Module WProperties_fun (Import E : DecidableType)(M : WSfun E).
rewrite (cardinal_2 (s:=remove x s') (s':=s') (x:=x)); eauto with set.
Qed.
- Add Morphism cardinal : cardinal_m.
+ Add Morphism cardinal with signature (Equal ==> Logic.eq) as cardinal_m.
Proof.
exact Equal_cardinal.
Qed.