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Theorem set.not_not_mem

Modification history

2021-01-27 18:19
src/data/set/basic.lean
refactor(data/set/basic): simpler proofs (#5920) …
Modified set.not_not_memView on Github →
2020-04-08 17:46
src/data/set/basic.lean
feat(tactic/linter): add decidable_classical linter (#2352) …
Modified set.not_not_memView on Github →
2017-12-31 16:53
data/set/basic.lean
feat(data/ordinal): is_normal, omin, power/log, CNF, indecomposables, …
Modified set.not_not_memView on Github →
2017-12-06 13:30
data/set/basic.lean
feature(.): add various theorems
Modified set.not_not_memView on Github →
2017-09-03 20:55
data/set/basic.lean
refactor(logic/basic): refactor logic theorems
Added set.not_not_memView on Github →