Commit 2020-08-13 11:01 b1e56a21
View on Github →feat(analysis/special_functions/trigonometric): Added lemma cos_ne_zero_iff (#3743)
I added the theorem cos_ne_zero_iff
, a corollary to the preexisting theorem cos_eq_zero_iff
feat(analysis/special_functions/trigonometric): Added lemma cos_ne_zero_iff (#3743)
I added the theorem cos_ne_zero_iff
, a corollary to the preexisting theorem cos_eq_zero_iff