[Merged by Bors] - feat: port Algebra.Group.TypeTags#832
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[Merged by Bors] - feat: port Algebra.Group.TypeTags#832
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Vtec234
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Vtec234
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Vtec234
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| theorem toMul_add [Mul α] (x y : Additive α) : toMul (x + y) = toMul x * toMul y := rfl | ||
| #align to_mul_add toMul_add | ||
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| instance Additive.addSemigroup [Semigroup α] : AddSemigroup (Additive α) := |
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Mathlib 6eb334bd8f3433d5b08ba156b8ec3e6af47e1904 Co-authored-by: Wojciech Nawrocki <wjnawrocki@protonmail.com> Co-authored-by: Scott Morrison <scott.morrison@gmail.com>
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Tracking mathlib commit: [dad7ecf9a1feae63e6e49f07619b7087403fb8d4](leanprover-community/mathlib3@dad7ecf) - [x] depends on: #832 Co-authored-by: Scott Morrison <scott.morrison@gmail.com> Co-authored-by: Wojciech Nawrocki <wjnawrocki+gh@protonmail.com> Co-authored-by: Ruben Van de Velde <65514131+Ruben-VandeVelde@users.noreply.github.com> Co-authored-by: ChrisHughes24 <chrishughes24@gmail.com>
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Regenerated from the [port status wiki page](https://github.com/leanprover-community/mathlib/wiki/mathlib4-port-status). Relates to the following PRs: * `algebra.divisibility.units`: leanprover-community/mathlib4#848 * `algebra.group.type_tags`: leanprover-community/mathlib4#832 * `algebra.group_with_zero.divisibility`: leanprover-community/mathlib4#870 * `algebra.hom.equiv.basic`: leanprover-community/mathlib4#835 * `algebra.order.group.defs`: leanprover-community/mathlib4#869 * `algebra.order.monoid.basic`: leanprover-community/mathlib4#872 * `algebra.order.monoid.cancel.basic`: leanprover-community/mathlib4#883 * `algebra.order.monoid.with_zero.defs`: leanprover-community/mathlib4#851 * `algebra.order.monoid.with_zero.basic`: leanprover-community/mathlib4#851 * `algebra.ring.divisibility`: leanprover-community/mathlib4#864 * `data.list.defs`: leanprover-community/mathlib4#803 * `data.sigma.order`: leanprover-community/mathlib4#887 * `group_theory.group_action.defs`: leanprover-community/mathlib4#854 * `order.heyting.boundary`: leanprover-community/mathlib4#844 * `order.hom.basic`: leanprover-community/mathlib4#804 * `order.symm_diff`: leanprover-community/mathlib4#842 Co-authored-by: Johan Commelin <johan@commelin.net>
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Mathlib 6eb334bd8f3433d5b08ba156b8ec3e6af47e1904