def
definition
def or abbrev
realizationOrbit_equiv_logicNat
show as:
view Lean formalization →
formal statement (Lean)
220noncomputable def realizationOrbit_equiv_logicNat (R : LogicRealization.{0, 0}) :
221 R.Orbit ≃ LogicNat :=
proof body
Definition body.
222 IsNaturalNumberObject.equiv (realizationOrbit_isNNO R) logicNat_isNNO
223
224/-- The Lawvere universality statement: any two realizations have iteration
225orbits that satisfy the natural-number-object property, hence are
226canonically equivalent. -/