view Todo @ 187:ac872f6b8692

add Todo
author Shinji KONO <>
date Tue, 23 Jul 2019 11:08:24 +0900
parents 6e767ad3edc2
children bca043423554
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Tue Jul 23 11:02:50 JST 2019

    define cardinals 
    prove CH in OD→ZF
    define Ultra filter
    define L M : ZF ZFSet = M is an OD
    define L N : ZF ZFSet = N = G M (G is a generic fitler on M )
    prove ¬ CH on L N
    prove no choice function on L N

Mon Jul  8 19:43:37 JST 2019

    ordinal-definable.agda assumes all ZF Set are ordinals, that it too restrictive

    remove ord-Ord  and prove with some assuption in HOD.agda
        union, power set, replace, inifinite