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Def free_semigroup

Modification history

2022-11-06 07:48
src/algebra/free.lean
refactor(algebra/free): review API, redefine `free_semigroup` (#17144)
Deleted free_semigroupView on Github →
2019-04-12 12:59
src/algebra/free.lean
feat(algebra/free): free magma, semigroup, monoid (#735)
Added free_semigroupView on Github →