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formal statement (Lean)
68theorem theta_le_pi (d : DihedralAngleData) : d.theta ≤ Real.pi :=
proof body
Term-mode proof.
69 Real.arccos_le_pi d.cosine
70
71/-- `cos θ = cosine` by construction. -/
used by (1)
From the project-wide theorem graph. These declarations reference this one in their body.
depends on (3)
Lean names referenced from this declaration's body.
-
DihedralAngleData
in IndisputableMonolith.Geometry.DihedralAngle
decl_use
-
DihedralAngleData
in IndisputableMonolith.Gravity.ReggeCalculus
decl_use
-
theta
in IndisputableMonolith.NumberTheory.RiemannHypothesis.BRFPlumbing
decl_use