Complemented inequality of cardinalities #1591
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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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Since #1206 is now merged I can |
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Okay done :) |
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Introduces another inequality relation on cardinalities that is antisymmetric assuming WLPO, and coincides with the usual inequality assuming LEM. Also does some cleanup for the cardinality formalizations.
The main results of this PR are currently blocked on #1206 which is in turn still blocked on #1264. However, it can still be merged, as those results are not type checked in the present version.