Mathlib v3 is deprecated. Go to Mathlib v4

Theorem real.tan_neg_of_neg_of_pi_div_two_lt

Modification history

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.tan_neg_of_neg_of_pi_div_two_ltView on Github →