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Theorem smul_inv'

Modification history

2021-09-08 14:00
src/algebra/group_ring_action.lean
feat(group_theory/group_action): Extract a smaller typeclass out of `mul_semiring_action` (#8918) …
Modified smul_inv'View on Github →
2021-05-15 21:20
src/algebra/group_ring_action.lean
chore(group_theory/group_action/group): add `smul_inv` (#7568) …
Added smul_inv'View on Github →