Theorem neg_neg

Modification history

2022-10-14 00:13

Mathlib/Algebra/Group/Defs.lean

feat: replace Algebra/Group/{Defs,Basic} with direct ports from mathlib3 (#457) …

Deleted neg_neg View on Github →

2021-05-14 12:59

Mathlib/Algebra/Group/Defs.lean

feat(Algebra/*): beginning of algebra hierarchy (#4)

Added neg_neg View on Github →