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Theorem real.cos_nonpos_of_pi_div_two_le_of_le

Modification history

2020-12-18 01:44

src/analysis/special_functions/trigonometric.lean

chore(analysis/special_functions/trigonometric): review, golf (#5392)

Modified real.cos_nonpos_of_pi_div_two_le_of_le View on Github →

2018-10-17 09:25

analysis/exponential.lean

feat(*): trigonometric functions: exp, log, sin, cos, tan, sinh, cosh, tanh, pi, arcsin, argcos, arg (#386) …

Added real.cos_nonpos_of_pi_div_two_le_of_le View on Github →