diff options
-rw-r--r-- | test-suite/bugs/closed/shouldsucceed/2928.v | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/test-suite/bugs/closed/shouldsucceed/2928.v b/test-suite/bugs/closed/shouldsucceed/2928.v new file mode 100644 index 000000000..21e92ae20 --- /dev/null +++ b/test-suite/bugs/closed/shouldsucceed/2928.v @@ -0,0 +1,11 @@ +Class Equiv A := equiv: A -> A -> Prop. +Infix "=" := equiv : type_scope. + +Class Associative {A} f `{Equiv A} := associativity x y z : f x (f y z) = f (f x y) z. + +Class SemiGroup A op `{Equiv A} := { sg_ass :>> Associative op }. + +Class SemiLattice A op `{Equiv A} := + { semilattice_sg :>> SemiGroup A op + ; redundant : Associative op + }. |