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Answer by Andrej Bauer for From a constructive perspective, what are the...

The ordinals in constructive mathematics are not as well-behaved as in classical mathematics. For example, if they are linearly ordered the excluded middle holds. There are appropriate substitutes,...

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From a constructive perspective, what are the ordinal numbers?

From a constructive and computational perspective, what are the ordinal numbers?On the one hand, it seems you can represent ordinal numbers symbolically using something like Cantor Normal Form...

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