fact: Definition cvec z sq := let sg_tab := sg_tab (size sq) in \row_(i < 3 ^ size sq) ((constraints z sq (nth [::] sg_tab i))%:~R : int).
imports: mathcomp.ssreflect.ssreflect mathcomp(ssrfun ssrbool eqtype ssrnat seq choice path fintype) mathcomp(div bigop order ssralg poly polydiv ssrnum perm zmodp ssrint) mathcomp(polyorder polyrcf interval matrix mxtens)