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What is a creepy or weird fact that would scare even the bravest person? (lemmy.blahaj.zone)

submitted 3 weeks ago* (last edited 3 weeks ago) by intohimo@lemmy.blahaj.zone to c/asklemmy@lemmy.ml

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[–] CanadaPlus@lemmy.sdf.org 2 points 2 weeks ago* (last edited 2 weeks ago) (1 children)

Yeah, OP seems to be assuming a continuous mapping. It still works if you don't, but the standard way to prove it is the more abstract "diagonal argument".

[–] jsomae@lemmy.ml 1 points 20 hours ago* (last edited 20 hours ago)

But then a simple comeback would be, "well perhaps there is a non-continuous mapping." (There isn't one, of course.)

"It still works if you don't" -- how does red's argument work if you don't? Red is not using cantor's diagonal proof.