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Commit 855014ca authored by Robbert Krebbers's avatar Robbert Krebbers
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ElimModal instance for □.

parent 634fdbb6
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proofmode/class_instances.v
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......@@ -381,6 +381,9 @@ Proof.
rewrite /ElimModal=> H. apply forall_intro=> a. by rewrite (forall_elim a).
Qed.
Global Instance elim_modal_always P Q : ElimModal (□ P) P Q Q.
Proof. intros. by rewrite /ElimModal always_elim wand_elim_r. Qed.
Global Instance elim_modal_bupd P Q : ElimModal (|==> P) P (|==> Q) (|==> Q).
Proof. by rewrite /ElimModal bupd_frame_r wand_elim_r bupd_trans. Qed.
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