Commit d87541bc authored by Ralf Jung's avatar Ralf Jung
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Merge branch 'ralf/fixpoint_unfold' into 'master'

give some help for using fixpoint_unfold

See merge request iris/iris!749
parents 53ec94ec d4dd8716
......@@ -340,6 +340,9 @@ Definition fixpoint_eq : @fixpoint = @fixpoint_def := fixpoint_aux.(seal_eq).
Section fixpoint.
Context `{Cofe A, Inhabited A} (f : A A) `{!Contractive f}.
(** This lemma does not work well with [rewrite]; we usually define a specific
unfolding lemma for each fixpoint and then [apply fixpoint_unfold] in the
proof of that unfolding lemma. *)
Lemma fixpoint_unfold : fixpoint f f (fixpoint f).
apply equiv_dist=>n.
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