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Theorem real.angle.cos_eq_real_cos_iff_eq_or_eq_neg

Modification history

2022-07-27 17:03

src/analysis/special_functions/trigonometric/angle.lean

feat(analysis/special_functions/trigonometric/angle): equality of `cos` or `sin` (#15651) …

Added real.angle.cos_eq_real_cos_iff_eq_or_eq_neg View on Github →