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Dec 8, 2021 at 16:23 vote accept Diego Martinez
Dec 8, 2021 at 16:19 comment added YCor In $\mathbf{Z}$ just exchange any prescribed set of even numbers to their successor. Morality: never believe what you're told :)
Dec 8, 2021 at 16:18 answer added YCor timeline score: 5
Dec 8, 2021 at 16:06 comment added YCor Yes, I'm going to post an answer.
Dec 8, 2021 at 16:06 comment added Diego Martinez @Ycor Does it? I've been told otherwise. Do you have a proof of it?
Dec 8, 2021 at 16:04 comment added YCor For $X=\mathbf{Z}$ it has continuum cardinal.
Dec 8, 2021 at 15:46 history asked Diego Martinez CC BY-SA 4.0