Theorems · Theorem · Lie groups
Real.Angle.cos_sub_pi
∀ (θ : Real.Angle), (θ - ↑Real.pi).cos = -θ.cos
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- Foundations
- Depth 181 from the axioms · uses propext, Classical.choice, Quot.sound
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Cites7
Mathlib declarations this one mentions in its statement or cites explicitly in its proof. Plumbing is filtered out.
- Realstatement · cited by 25,697
- Real.pistatement · cited by 1,774
- Real.Anglestatement and proof · cited by 518
- Real.Angle.coestatement · cited by 360
- Real.Angle.cosstatement · cited by 77
- Function.Antiperiodic.sub_eqproof · cited by 12
- Real.Angle.cos_antiperiodicproof · cited by 2
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