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> it was proved by Cantor and Cohen

Goedel and Cohen. Goedel proved it might be (constructible universe); Cohen proved it might not be (forcing). I think Cohen's on record as saying he suspects that with the "right" axioms, mathematicians might come to think that CH is obviously false.



Ah, of course, I don't know why I have written Cantor. It's too late to edit now.




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