Theorem Real.cos_ne_zero_iff

Modification history

2024-01-25 13:08
Mathlib/Analysis/SpecialFunctions/Trigonometric/Complex.lean
feat(Trigonometric): add lemmas about `cos x = -1 ↔ _` etc (#9878)
Modified Real.cos_ne_zero_iffView on Github →
2023-06-06 18:26
Mathlib/Analysis/SpecialFunctions/Trigonometric/Complex.lean
feat: port Analysis.SpecialFunctions.Trigonometric.Complex (#4744)
Added Real.cos_ne_zero_iffView on Github →