Recently I have found statement that claims:
(Jockusch-Mohrherr) Let A be any c.e. set except ω. Then A is creative iff (∀c.e.B) [A∩B=∅ ⇒ A ≡ A∪B].
But I couldn't find any proof of it. Can somebody help me prove this claim?
2026-03-28 20:40:24.1774730424
Creative sets (Jockush-Mohrherr)
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