Add definition of subfinite sets and finitely indexed types #416
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mortberg
approved these changes
Oct 2, 2020
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PS: Sorry for the slow review! I've been quite swamped all of September... |
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As discussed in #392 and following nLab, I have defined subfinite sets and finitely indexed types. The latter are usually called finitely indexed sets, but they don't have to be sets in HoTT (for example, the circle is finitely indexed). They are usually called Kuratowski finite, but maybe we can leave that name to the more usual (equivalent) definition with
LFSet.