Mathlib v3 is deprecated. Go to Mathlib v4

Theorem neg_sub

Modification history

2021-11-23 15:06
src/algebra/group/basic.lean
refactor(algebra.group.basic): Convert sub_add_cancel and neg_sub to multaplicative form (#10419) …
Deleted neg_subView on Github →
2020-05-18 13:38
src/algebra/group/basic.lean
refactor(algebra): merge init_.algebra into algebra (#2707) …
Modified neg_subView on Github →
2020-05-17 17:58
src/init_/algebra/group.lean
chore(*): bump to lean-3.13.1 (#2697) …
Added neg_subView on Github →