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Theorem real.cos_eq_zero_iff

Modification history

2021-09-27 04:20
src/analysis/special_functions/trigonometric/basic.lean
refactor(analysis/special_functions/trigonometric): split file (#9340) …
Modified real.cos_eq_zero_iffView on Github →
2020-09-06 11:28
src/analysis/special_functions/trigonometric.lean
feat(analysis/special_functions/trigonometric): Added lemmas for deriv of tan (#3746) …
Modified real.cos_eq_zero_iffView on Github →
2019-02-23 11:37
src/analysis/exponential.lean
feat(*): polar co-ordinates, de moivre, trig identities, quotient group for angles (#745) …
Added real.cos_eq_zero_iffView on Github →