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Commit c9261672 authored by Robbert Krebbers's avatar Robbert Krebbers
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Lemma about wand.

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......@@ -670,6 +670,8 @@ Proof.
apply wand_intro_l. rewrite ![(_ ★ P)%I]comm -assoc.
apply sep_mono_r, wand_elim_r.
Qed.
Lemma wand_diag P : (P -★ P)%I ≡ True%I.
Proof. apply (anti_symm _); auto. apply wand_intro_l; by rewrite right_id. Qed.
Lemma sep_and P Q : (P ★ Q) ⊑ (P ∧ Q).
Proof. auto. Qed.
Lemma impl_wand P Q : (P → Q) ⊑ (P -★ Q).
......
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