Theorem not_not_intro

Modification history

2021-08-24 10:34
Mathlib/Init/Logic.lean
update lean version to nightly-2021-08-24 (#42) …
Deleted not_not_introView on Github →
2021-08-12 12:17
Mathlib/Init/Logic.lean
split out Lean 3 prelude items from Logic/Basic.lean to Init/Logic.lean (#34)
Modified not_not_introView on Github →
2021-05-09 22:49
Mathlib/Logic/Basic.lean
feat(Logic/Basic): import init.logic
Added not_not_introView on Github →