proposition: Lemma truncC_itv x : 0 <= x -> (truncC x)%:R <= x < (truncC x).+1%:R.
proof: Proof. exact: trunc_itv. Qed.
imports: HB(structures) mathcomp(ssreflect ssrbool ssrfun ssrnat eqtype seq choice) mathcomp(div fintype path bigop finset prime order ssralg) mathcomp(poly polydiv mxpoly generic_quotient countalg) mathcomp(ssrnum closed_field ssrint archimedean rat intdiv) mathcomp(algebraics_fundamentals)