Nat.Partrec.Code.exists_code

∀ {f : ℕ →. ℕ}, Nat.Partrec f ↔ ∃ c, c.eval = f

A function is partial recursive if and only if there is a code implementing it. Therefore, eval is a universal partial recursive function.

Defined in: Mathlib.Computability.PartrecCode
Cited by: 5 results in Mathlib
Foundations: Depth 93 from the axioms · uses propext, Classical.choice, Quot.sound

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