proposition: Lemma conj_intr x : x \is a int_num -> x^* = x.
proof: Proof. by move/Rreal_int/CrealP. Qed.
imports: HB(structures) mathcomp(ssreflect ssrfun ssrbool eqtype ssrnat seq choice) mathcomp(fintype bigop order ssralg poly ssrnum ssrint)