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def definition def or abbrev

realizationOrbit_equiv_logicNat

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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. -/

depends on (7)

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