Mathlib v3 is deprecated. Go to Mathlib v4

Theorem real.angle.sign_two_nsmul_eq_sign_iff

Modification history

2022-12-05 05:36
src/analysis/special_functions/trigonometric/angle.lean
feat(analysis/special_functions/trigonometric/angle): `to_real` lemmas (#17395) …
Added real.angle.sign_two_nsmul_eq_sign_iffView on Github →