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Theorem real.cos_nonneg_of_mem_Icc

Modification history

2020-12-18 01:44
src/analysis/special_functions/trigonometric.lean
chore(analysis/special_functions/trigonometric): review, golf (#5392)
Modified real.cos_nonneg_of_mem_IccView 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) …
Added real.cos_nonneg_of_mem_IccView on Github →