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Theorem set.not_injective_nat_fintype

Modification history

2020-01-22 00:57
src/data/set/finite.lean
feat(order/filter/basic): prove `@cofinite ℕ = at_top` (#1888) …
Deleted set.not_injective_nat_fintypeView on Github →
2019-09-27 16:05
src/data/set/finite.lean
chore(algebra/char_p): remove some decidable_eq assumptions (#1492) …
Modified set.not_injective_nat_fintypeView on Github →
2018-03-10 13:38
data/set/finite.lean
feat(group_theory): add a little bit of group theory; prove of Lagrange's theorem
Added set.not_injective_nat_fintypeView on Github →