Commit 2023-06-06 18:52 ae871a75

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feat: port RepresentationTheory.Action (#4700)

Estimated changes

added def Action.Hom.comp
added def Action.Hom.id
added structure Action.Hom
added theorem Action.Iso.conj_ρ
added theorem Action.add_hom
added theorem Action.comp_hom
added def Action.diagonal
added def Action.forget
added theorem Action.hom_ext
added theorem Action.id_hom
added theorem Action.leftDual_v
added theorem Action.leftDual_ρ
added def Action.mkIso
added theorem Action.neg_hom
added def Action.res
added def Action.resComp
added def Action.resId
added theorem Action.rightDual_v
added theorem Action.rightDual_ρ
added theorem Action.smul_hom
added theorem Action.sum_hom
added theorem Action.tensorHom
added theorem Action.tensorUnit_rho
added theorem Action.tensorUnit_v
added theorem Action.tensor_rho
added theorem Action.tensor_v
added def Action.trivial
added theorem Action.zero_hom
added def Action.ρAut
added theorem Action.ρ_one
added structure Action