Mathlib v3 is deprecated. Go to Mathlib v4

Theorem norm_num.neg_mul_neg_helper

Modification history

2020-06-29 16:12
src/init_/algebra/norm_num.lean
chore(init_/): remove this directory (#3227) …
Deleted norm_num.neg_mul_neg_helperView on Github →
2020-05-17 17:58
src/init_/algebra/norm_num.lean
chore(*): bump to lean-3.13.1 (#2697) …
Added norm_num.neg_mul_neg_helperView on Github →