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

Lemma Cint_vchar1 phi : phi \in 'Z[irr G] -> phi 1%g \in Cint.