Theorems · Theorem · real analysis
Complex.cos_pi_sub
∀ (x : ℂ), Complex.cos (↑Real.pi - x) = -Complex.cos x
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- Foundations
- Depth 176 from the axioms · uses propext, Classical.choice, Quot.sound
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- Complexstatement and proof · cited by 5,565
- Real.pistatement · cited by 1,774
- Complex.ofRealstatement · cited by 1,654
- Complex.cosstatement · cited by 279
- Complex.cos_negproof · cited by 17
- Complex.cos_antiperiodicproof · cited by 9
- Function.Antiperiodic.sub_eq'proof · cited by 5
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