proposition: Lemma char1_ge_constt (i : Iirr G) chi : chi \is a character -> i \in irr_constt chi -> 'chi_i 1%g <= chi 1%g.
proof: Proof. move=> {chi} _ /constt_charP[// | chi Nchi ->]. by rewrite cfunE addrC -subr_ge0 addrK char1_ge0. Qed.
imports: HB(structures) mathcomp(ssreflect ssrbool ssrfun eqtype choice ssrnat seq) mathcomp(path div fintype tuple finfun bigop prime order) mathcomp(ssralg poly finset gproduct fingroup morphism) mathcomp(perm automorphism quotient finalg action zmodp) mathcomp(commutator cyclic center pgroup nilpotent sylow) mathcomp(abelian matrix mxalgebra mxpoly mxrepresentation) mathcomp(vector ssrnum algC classfun archimedean)