mathlib3

ccb9d64b - feat(category_theory/braiding): pull back a braiding along a faithful functor (#13684)

feat(category_theory/braiding): pull back a braiding along a faithful functor (#13684) I intend to use this to define the braiding/symmetry on `Rep k G` using the existing braiding/symmetry on `Module k`. Co-authored-by: Scott Morrison <scott.morrison@gmail.com>