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Theorem set.countable.preimage_of_inj_on

Modification history

2022-06-22 18:31
src/data/set/countable.lean
refactor(data/set/countable): make `set.countable` protected (#14886) …
Modified set.countable.preimage_of_inj_onView on Github →
2021-09-28 01:02
src/data/set/countable.lean
feat(analysis/special_functions/complex/log): `exp ⁻¹' s` is countable (#9410) …
Added set.countable.preimage_of_inj_onView on Github →