mathlib

480b00c8 - feat(algebra/group/type_tags): adding function coercion for `additive` and `multiplicative` (#6657)

feat(algebra/group/type_tags): adding function coercion for `additive` and `multiplicative` (#6657) [As on zulip](https://leanprover.zulipchat.com/#narrow/stream/116395-maths/topic/to_additive.20mismatch/near/230042978) Co-authored-by: Eric Wieser <wieser.eric@gmail.com>