Commit 982d20ee authored by Robbert Krebbers's avatar Robbert Krebbers

Setoid stuff for monadic operations.

parent 75c2b38e
......@@ -399,20 +399,20 @@ and fmap. We use these type classes merely for convenient overloading of
notations and do not formalize any theory on monads (we do not even define a
class with the monad laws). *)
Class MRet (M : Type Type) := mret: {A}, A M A.
Instance: Params (@mret) 3.
Arguments mret {_ _ _} _.
Instance: Params (@mret) 3.
Class MBind (M : Type Type) := mbind : {A B}, (A M B) M A M B.
Arguments mbind {_ _ _ _} _ !_ /.
Instance: Params (@mbind) 5.
Instance: Params (@mbind) 4.
Class MJoin (M : Type Type) := mjoin: {A}, M (M A) M A.
Instance: Params (@mjoin) 3.
Arguments mjoin {_ _ _} !_ /.
Instance: Params (@mjoin) 3.
Class FMap (M : Type Type) := fmap : {A B}, (A B) M A M B.
Instance: Params (@fmap) 6.
Arguments fmap {_ _ _ _} _ !_ /.
Instance: Params (@fmap) 4.
Class OMap (M : Type Type) := omap: {A B}, (A option B) M A M B.
Instance: Params (@omap) 6.
Arguments omap {_ _ _ _} _ !_ /.
Instance: Params (@omap) 4.
Notation "m ≫= f" := (mbind f m) (at level 60, right associativity) : C_scope.
Notation "( m ≫=)" := (λ f, mbind f m) (only parsing) : C_scope.
......
......@@ -525,12 +525,12 @@ End fresh.
Section collection_monad.
Context `{CollectionMonad M}.
Global Instance collection_fmap_proper {A B} (f : A B) :
Proper (() ==> ()) (fmap f).
Proof. intros X Y [??]; split; esolve_elem_of. Qed.
Global Instance collection_bind_proper {A B} (f : A M B) :
Proper (() ==> ()) (mbind f).
Proof. intros X Y [??]; split; esolve_elem_of. Qed.
Global Instance collection_fmap_proper {A B} :
Proper (pointwise_relation _ (=) ==> () ==> ()) (@fmap M _ A B).
Proof. intros f g ? X Y [??]; split; esolve_elem_of. Qed.
Global Instance collection_bind_proper {A B} :
Proper (((=) ==> ()) ==> () ==> ()) (@mbind M _ A B).
Proof. unfold respectful; intros f g Hfg X Y [??]; split; esolve_elem_of. Qed.
Global Instance collection_join_proper {A} :
Proper (() ==> ()) (@mjoin M _ A).
Proof. intros X Y [??]; split; esolve_elem_of. Qed.
......
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