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Jul 30, 2022 at 3:08 comment added wilsonw Could you explain how you find the least element $x$? It does not seem to be computable
Dec 3, 2010 at 14:25 vote accept mathahada
Dec 2, 2010 at 4:13 comment added Joel David Hamkins Hello, Russell, welcome to MO, and thanks for this explanation!
Dec 2, 2010 at 3:30 history answered Russell Miller CC BY-SA 2.5