def definition def or abbrev

`phiTetrahedralAngle`

No prose has been written for this declaration yet. The Lean source and graph data below render without it.

formal statement (Lean)

  33noncomputable def phiTetrahedralAngle : ℝ := Real.arccos (-(1 / 3 : ℝ))

Definition body.

  34
  35/-- Rotor pitch family: integral log-spiral pitch `kappa : ℤ`. -/

From the project-wide theorem graph. These declarations reference this one in their body.

Lean names referenced from this declaration's body.

kappa in IndisputableMonolith.Materials.ThermalConductivityRegimesFromPhiLadder decl_use
kappa in IndisputableMonolith.NumberTheory.AnnularCost decl_use