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Theorem cardinal.one_to_nat

Modification history

2022-06-05 07:36
src/set_theory/cardinal/basic.lean
refactor(set_theory/*): change `omega` to `aleph_0` + golf (#14467) …
Modified cardinal.one_to_natView on Github →
2021-10-20 18:03
src/set_theory/cardinal.lean
feat(group_theory/index): Index of top and bottom subgroups (#9819) …
Modified cardinal.one_to_natView on Github →
2021-03-04 16:01
src/set_theory/cardinal.lean
feat(set_theory/cardinal, data/nat/fincard): Define `nat`- and `enat`-valued cardinalities (#6494) …
Added cardinal.one_to_natView on Github →