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Questions about the continuum hypothesis, or where the continuum hypothesis or its negation plays a role. This tag is also suitable, by extension, to refer to the generalized continuum hypothesis and related issues.

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CH in non-set theoretic foundations

In ETCS, the continuum hypothesis can be encoded as the statement that given a set $X$ with injections $\mathbb{N} \hookrightarrow X \hookrightarrow 2^{\mathbb{N}}$, then there is either an isomorphis …
David Roberts's user avatar
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