make a Persistent instance global

74852b24 · Glen Mével · 9daed8bb · 74852b24
Commit 74852b24 authored May 10, 2021 by Glen Mével
--- a/theories/Thunks.v
+++ b/theories/Thunks.v
@@ -226,7 +226,7 @@ Section ThunkProofs.
    eapply to_agree_op_valid_L, (proj1 (Cinr_valid (A:=unitR) _)). by rewrite Cinr_op.
  Qed.

-  Local Instance Thunk'_persistent p t γv n R φ d :
+  Global Instance Thunk'_persistent p t γv n R φ d :
    Persistent (Thunk' p t γv n R φ d).
  Proof.
    revert n φ. induction d ; exact _.