diff options
Diffstat (limited to 'theories/Classes/CEquivalence.v')
| -rw-r--r-- | theories/Classes/CEquivalence.v | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/theories/Classes/CEquivalence.v b/theories/Classes/CEquivalence.v index b540feabf..8610f18c3 100644 --- a/theories/Classes/CEquivalence.v +++ b/theories/Classes/CEquivalence.v @@ -107,11 +107,11 @@ Section Respecting. Definition respecting `(eqa : Equivalence A (R : crelation A), eqb : Equivalence B (R' : crelation B)) : Type := - { morph : A -> B | respectful R R' morph morph }. + { morph : A -> B & respectful R R' morph morph }. Program Instance respecting_equiv `(eqa : Equivalence A R, eqb : Equivalence B R') : Equivalence (fun (f g : respecting eqa eqb) => - forall (x y : A), R x y -> R' (proj1_sig f x) (proj1_sig g y)). + forall (x y : A), R x y -> R' (projT1 f x) (projT1 g y)). Solve Obligations with unfold respecting in * ; simpl_crelation ; program_simpl. |