Given the comments, should this question be reopened Is |A| < |B| possible if A->B is surjective?
With a negative score, no answers and closed it will be automatically deleted, losing the comments in the process.
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- $\begingroup$ I have left a comment, suggesting that Joel post, and answer, an improved version of the question. $\endgroup$Gerry Myerson– Gerry Myerson2023-12-13 20:57:35 +00:00Commented Dec 13, 2023 at 20:57
- 2$\begingroup$ As mentioned in Asaf's comment, the question would be a duplicate of mathoverflow.net/questions/65369/… anyway if it weren't closed for another reason. $\endgroup$Emil Jeřábek– Emil Jeřábek2023-12-14 07:09:53 +00:00Commented Dec 14, 2023 at 7:09
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