FromPure instance for later, to make iPureIntro/done work on laters.

facc4127 · Robbert Krebbers · 293fb6c7 · facc4127
Commit facc4127 authored Apr 27, 2017 by Robbert Krebbers
--- a/theories/proofmode/class_instances.v
+++ b/theories/proofmode/class_instances.v
@@ -124,6 +124,9 @@ Proof.
  rewrite -Hx. apply pure_intro. done.
 Qed.

+Global Instance from_pure_later P φ : FromPure P φ → FromPure (▷ P)%I φ.
+Proof. rewrite /FromPure=> ->. apply later_intro. Qed.
+
 (* IntoPersistentP *)
 Global Instance into_persistentP_always_trans P Q :
  IntoPersistentP P Q → IntoPersistentP (□ P) Q | 0.