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Commit 8d55728b authored by Robbert Krebbers's avatar Robbert Krebbers
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More constructors for LimitPreserving.

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......@@ -1081,6 +1081,13 @@ Section limit_preserving.
(* These are not instances as they will never fire automatically...
but they can still be helpful in proving things to be limit preserving. *)
Global Instance limit_preserving_const (P : Prop) : LimitPreserving (λ _, P).
Proof. intros c HP. apply (HP 0). Qed.
Lemma limit_preserving_timeless (P : A Prop) :
Proper (dist 0 ==> impl) P LimitPreserving P.
Proof. intros PH c Hc. by rewrite (conv_compl 0). Qed.
Lemma limit_preserving_and (P1 P2 : A Prop) :
LimitPreserving P1 LimitPreserving P2
LimitPreserving (λ x, P1 x P2 x).
......
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