pith. machine review for the scientific record. sign in
theorem proved tactic proof

phi5_eq

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)

  44theorem phi5_eq : phi ^ 5 = 5 * phi + 3 := by

proof body

Tactic-mode proof.

  45  have h2 := phi_sq_eq
  46  have h3 : phi ^ 3 = 2 * phi + 1 := by nlinarith
  47  have h4 : phi ^ 4 = 3 * phi + 2 := by nlinarith
  48  nlinarith
  49

used by (14)

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

depends on (6)

Lean names referenced from this declaration's body.