### Have dist_later not depend on an ofeT, but on an unbundled Dist.

```That way, we can use Contractive as part of structure definitions in
which we do not have a bundled OFE yet.```
parent 5fc07ae0
 ... ... @@ -195,11 +195,11 @@ Section ofe. End ofe. (** Contractive functions *) Definition dist_later {A : ofeT} (n : nat) (x y : A) : Prop := Definition dist_later `{Dist A} (n : nat) (x y : A) : Prop := match n with 0 => True | S n => x ≡{n}≡ y end. Arguments dist_later _ !_ _ _ /. Arguments dist_later _ _ !_ _ _ /. Global Instance dist_later_equivalence A n : Equivalence (@dist_later A n). Global Instance dist_later_equivalence (A : ofeT) n : Equivalence (@dist_later A _ n). Proof. destruct n as [|n]. by split. apply dist_equivalence. Qed. Lemma dist_dist_later {A : ofeT} n (x y : A) : dist n x y → dist_later n x y. ... ... @@ -244,7 +244,7 @@ Ltac f_contractive := | |- ?f _ _ ≡{_}≡ ?f _ _ => apply (_ : Proper (_ ==> dist_later _ ==> _) f) end; try match goal with | |- @dist_later ?A ?n ?x ?y => | |- @dist_later ?A _ ?n ?x ?y => destruct n as [|n]; [exact I|change (@dist A _ n x y)] end; try reflexivity. ... ...
Markdown is supported
0% or .
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!