fact: Definition inject1 n (i : 'I_n.+1) (p : {ipoly R[i]}) : {ipoly R[n]} := inject_cast (inject1_proof i) p.
imports: HB(structures) mathcomp(ssreflect ssrfun ssrbool eqtype ssrnat seq path) mathcomp(choice fintype tuple finfun bigop finset binomial) mathcomp(order fingroup perm ssralg zmodp poly ssrint) mathcomp(matrix vector) mathcomp(bigenough) ssrcomplements freeg