Theorems · Theorem · real analysis
Real.tan_pi_div_two
Real.tan (Real.pi / 2) = 0
- Cited by
- 1 results in Mathlib
- Foundations
- Depth 178 from the axioms · uses propext, Classical.choice, Quot.sound
Around this declaration
Dashed lines are statement dependencies; solid lines are citations in proofs.
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 and proof · cited by 1,774
- div_zeroproof · cited by 251
- Real.tanstatement · cited by 100
- Real.sin_pi_div_twoproof · cited by 29
- Real.cos_pi_div_twoproof · cited by 26
- Real.tan_eq_sin_div_cosproof · cited by 15
Cited by1
Results whose statement or proof uses this declaration.
- InnerProductGeometry.tan_angle_add_of_inner_eq_zeroproof · cited by 5