Add ordinal exponentiation notes to iset.mm #4611
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The comment of df-oexpi seems like a suitable place to say something about where we can find out more about constructive ordinal exponentiation.
sctfn
approved these changes
Jan 28, 2025
| arXiv:2501.14542 , ~ https://arxiv.org/abs/2501.14542 which is | ||
| formalized in the TypeTopology proof library at | ||
| ~ https://ordinal-exponentiation-hott.github.io/ . | ||
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Hah! I was just reading that paper today!
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You are a step ahead of me; I'll confess I only got to the abstract.
avekens
approved these changes
Jan 31, 2025
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The comment of df-oexpi seems like a suitable place to say something about where we can find out more about constructive ordinal exponentiation.
This is mostly in reaction to past threads such as:
and I think maybe at least one more past comment by @digama0 about what would be involved in adding ordinal exponentiation to iset.mm.
The good news is that ordinal exponentiation doesn't seem to really be needed for anything we have developed yet (including real numbers, https://us.metamath.org/ileuni/df-exp.html , https://us.metamath.org/ileuni/df-map.html , etc).