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Commit 2020-04-20 15:36 51e03aad

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feat(data/monoid_algebra): the distrib_mul_action (#2417)

Estimated changes

Modified src/data/finsupp.lean

added def finsupp.comap_distrib_mul_action

added def finsupp.comap_distrib_mul_action_self

added def finsupp.comap_has_scalar

added def finsupp.comap_mul_action

added theorem finsupp.comap_smul_apply

added theorem finsupp.comap_smul_single

Modified src/data/monoid_algebra.lean

Modified src/group_theory/group_action.lean

added def mul_action.regular