log

age author description
Tue, 17 Apr 2018 09:44:06 +0900 Shinji KONO lemma1 done
Sat, 14 Apr 2018 16:33:16 +0900 Shinji KONO use ⊥-elim (neq refl)
Wed, 11 Apr 2018 11:57:41 +0900 Shinji KONO this slightly better