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Commit 81685f69 authored by Robbert Krebbers's avatar Robbert Krebbers
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Add lemma `except_0_into_later P : ◇ P ⊢ ▷ P`.

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theories/bi/derived_laws_sbi.v
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......@@ -385,6 +385,8 @@ Proof.
Qed.
Lemma except_0_later P : ◇ ▷ P ⊢ ▷ P.
Proof. by rewrite /sbi_except_0 -later_or False_or. Qed.
Lemma except_0_into_later P : ◇ P ⊢ ▷ P.
Proof. by rewrite -except_0_later -later_intro. Qed.
Lemma except_0_persistently P : ◇ <pers> P ⊣⊢ <pers> ◇ P.
Proof.
by rewrite /sbi_except_0 persistently_or -later_persistently persistently_pure.
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