proposition: Lemma conjCi : 'i^* = - 'i :> C.
proof: Proof. by rewrite -invCi invC_norm normCi expr1n invr1 mul1r. Qed.
imports: HB(structures) mathcomp(ssreflect ssrfun ssrbool eqtype ssrnat seq choice) mathcomp(ssrAC div fintype path bigop order finset fingroup) mathcomp(ssralg poly)