Mercurial > hg > Members > kono > Proof > ZF-in-agda

diff zf.agda @ 73:dd430a95610f

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author Shinji KONO <kono@ie.u-ryukyu.ac.jp>
date Sat, 01 Jun 2019 18:17:24 +0900
parents f39f1a90d154
children 8e8f54e7a030
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--- a/zf.agda	Sat Jun 01 14:43:05 2019 +0900
+++ b/zf.agda	Sat Jun 01 18:17:24 2019 +0900
@@ -51,7 +51,7 @@
      pair : ( A B : ZFSet  ) →  ( (A , B)  ∋ A ) ∧ ( (A , B)  ∋ B  )
      -- ∀ x ∃ y ∀ z (z ∈ y ⇔ ∃ u ∈ x  ∧ (z ∈ u))
      union-u : ( X z : ZFSet  ) → Union X ∋ z → ZFSet
-     union→ : ( X z u : ZFSet ) → ((Union X ∋ u )  ∧ (u ∋ z )) → Union X ∋ z
+     union→ : ( X z u : ZFSet ) → ( X ∋ u ) ∧ (u ∋ z ) → Union X ∋ z
      union← : ( X z : ZFSet ) → (X∋z : Union X ∋ z ) → (X ∋ union-u X z X∋z)  ∧ (union-u X z X∋z ∋ z )
   _∈_ : ( A B : ZFSet  ) → Set m
   A ∈ B = B ∋ A