Canonical Zchar_opprPred := OpprPred Zchar_zmod.
Canonical Zchar_addrPred := AddrPred Zchar_zmod.
Canonical Zchar_zmodPred := ZmodPred Zchar_zmod.

Lemma Cint_cfdot_vchar_irr i phi : phi \in 'Z[irr G] -> '[phi, 'chi_i] \in Cint.