pith. machine review for the scientific record. sign in
lemma proved term proof

phi_def

show as:
view Lean formalization →

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

generate prose now

formal statement (Lean)

  22lemma phi_def : Constants.phi = Real.goldenRatio := rfl

proof body

Term-mode proof.

  23
  24/-- φ > 1. -/

used by (3)

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

depends on (1)

Lean names referenced from this declaration's body.