Theorem not_not

Modification history

2023-01-31 07:39
Mathlib/Logic/Basic.lean
Chore: drop `_root_.not_not`, export it from `Classical` (#1954) …
Deleted not_notView on Github →
2021-08-18 12:36
Mathlib/Logic/Basic.lean
Merge branch 'master' of github.com:leanprover-community/mathlib4
Added not_notView on Github →
2021-08-18 12:21
Mathlib/Logic/Basic.lean
feat(Util/Time): #time command
Deleted not_notView on Github →
2021-08-17 10:02
Mathlib/Logic/Basic.lean
port remaining items from 'section propositional' in logic/basic (#36)
Added not_notView on Github →