Theorems · Theorem · real analysis
Real.pi_div_two_pos
0 < Real.pi / 2
- Cited by
- 22 results in Mathlib
- Foundations
- Depth 175 from the axioms · uses propext, Classical.choice, Quot.sound
Around this declaration
Dashed lines are statement dependencies; solid lines are citations in proofs.
Cites4
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.pi_posproof · cited by 173
- half_posproof · cited by 83
Cited by22
Results whose statement or proof uses this declaration.
- Real.sin_pi_div_twoproof · cited by 29
- Real.arcsin_zeroproof · cited by 9
- Real.arcsin_oneproof · cited by 6
- Real.mul_le_sinproof · cited by 4
- Real.arcsin_nonnegproof · cited by 3
- PhragmenLindelof.horizontal_stripproof · cited by 3
- Real.surjOn_sinproof · cited by 2
- Real.arcsin_lt_pi_div_twoproof · cited by 2
- Real.surjOn_tanproof · cited by 2
- Real.neg_pi_div_two_lt_arcsinproof · cited by 2
- Real.lt_sin_mulproof · cited by 1
- Real.arcsin_neg_oneproof · cited by 1