WIP: Dependent sums and products of cardinals #1604
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I'm excited to see this work; I attempted once or twice to tackle the commutative semiring of cardinalities but didn't get very far. |
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I'm not sure I will complete this work anytime soon, but it's sure been fun to think a little about. Let me know if any of this is blocking your work and I'll make it a priority to merge, or remove it if I will not finish it. |
Clarified the conclusion about `leq-Cardinal` being antisymmetric and a partial order, referencing the Cantor–Schröder–Bernstein theorem and the law of excluded middle.
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Depends on #1591