Mercurial > hg > Members > kono > Proof > ZF-in-agda
diff src/OD.agda @ 448:81691a6b352b
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author | Shinji KONO <kono@ie.u-ryukyu.ac.jp> |
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date | Sun, 13 Mar 2022 19:03:33 +0900 |
parents | a5f8084b8368 |
children | b27d92694ed5 |
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--- a/src/OD.agda Sun Mar 13 14:44:24 2022 +0900 +++ b/src/OD.agda Sun Mar 13 19:03:33 2022 +0900 @@ -206,6 +206,9 @@ =od∅→≡o∅ : {x : HOD} → od x == od od∅ → & x ≡ o∅ =od∅→≡o∅ {x} eq = trans (cong (λ k → & k ) (==→o≡ {x} {od∅} eq)) ord-od∅ +≡od∅→=od∅ : {x : HOD} → x ≡ od∅ → od x == od od∅ +≡od∅→=od∅ {x} eq = ≡o∅→=od∅ (subst (λ k → & x ≡ k ) ord-od∅ ( cong & eq ) ) + ∅0 : record { def = λ x → Lift n ⊥ } == od od∅ eq→ ∅0 {w} (lift ()) eq← ∅0 {w} lt = lift (¬x<0 lt)