proposition: Lemma CrealJ : {mono (@conj_op C) : x / x \is Num.real}.
proof: Proof. by apply: (homo_mono1 conjCK) => x xreal; rewrite conj_Creal. Qed.
imports: HB(structures) mathcomp(ssreflect ssrfun ssrbool eqtype ssrnat seq choice) mathcomp(ssrAC div fintype path bigop order finset fingroup) mathcomp(ssralg poly)