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v3
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Mathlib v3 is deprecated.
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Theorem
is_subgroup.inv_mem_iff
Modification history
2020-06-01 23:39
src/deprecated/subgroup.lean
chore(group_theory/sub*): move unbundled submonoids and subgroups to `deprecated` (#2912) …
Modified
is_subgroup.inv_mem_iff
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2018-04-10 13:02
group_theory/subgroup.lean
refactor(algebra): move is_submonoid to group_theory and base is_subgroup on is_submonoid
Modified
is_subgroup.inv_mem_iff
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2018-03-10 13:38
group_theory/subgroup.lean
feat(group_theory): add a little bit of group theory; prove of Lagrange's theorem
Added
is_subgroup.inv_mem_iff
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