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

one_lt_phi

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)

  25lemma one_lt_phi : 1 < Constants.phi := by simp [phi_def, Real.one_lt_goldenRatio]

proof body

Term-mode proof.

  26
  27/-- φ ≠ 0. -/

used by (40)

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

… and 10 more

depends on (4)

Lean names referenced from this declaration's body.