Theorems · Theorem · real analysis
Real.cos_two_pi
Real.cos (2 * Real.pi) = 1
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- 0 results in Mathlib
- Foundations
- Depth 174 from the axioms · uses propext, Classical.choice, Quot.sound
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Cites12
Mathlib declarations this one mentions in its statement or cites explicitly in its proof. Plumbing is filtered out.
- Realstatement · cited by 25,697
- mul_oneproof · cited by 3,885
- MulZeroClass.mul_zeroproof · cited by 2,091
- Real.pistatement and proof · cited by 1,774
- neg_negproof · cited by 960
- sub_zeroproof · cited by 938
- mul_negproof · cited by 590
- Real.cosstatement and proof · cited by 424
- two_mulproof · cited by 232
- Real.cos_piproof · cited by 20
- Real.sin_piproof · cited by 14
- Real.cos_addproof · cited by 8
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