> If it's false then you can have infinitely many non-empty sets with a non-empt... | Hacker News

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thaumasiotes on Jan 14, 2014 | parent | context | favorite | on: X^2 is the sum of three periodic functions

> If it's false then you can have infinitely many non-empty sets with a non-empty Cartesian product.

with an empty Cartesian product, I think?

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