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

four_is_2sq

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)

  43theorem four_is_2sq : (4 : ℕ) = 2^2 := by decide

proof body

Term-mode proof.

  44
  45/-- 5 = D_config. -/