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

diff LEMC.agda @ 287:5de8905a5a2b

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author Shinji KONO <kono@ie.u-ryukyu.ac.jp>
date Sun, 07 Jun 2020 20:29:12 +0900
parents 313140ae5e3d
children 0faa7120e4b5
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--- a/LEMC.agda	Sun May 10 09:25:18 2020 +0900
+++ b/LEMC.agda	Sun Jun 07 20:29:12 2020 +0900
@@ -32,12 +32,6 @@
 
 open choiced
 
-double-neg-eilm : {A : Set (suc n)} → ¬ ¬ A → A      -- we don't have this in intutionistic logic
-double-neg-eilm  {A} notnot with p∨¬p A                         -- assuming axiom of choice
-... | case1 p = p
-... | case2 ¬p = ⊥-elim ( notnot ¬p )
-
-
 OD→ZFC : ZFC
 OD→ZFC   = record { 
     ZFSet = OD