fact: Definition seq_iso_L := [:: [:: F0; F1; F2; F3; F4; F5]; S05; S14; S23; R05; R14; R23; R50; R41; R32; R024; R042; R012; R021; R031; R013; R043; R034; S1; S2; S3; S4; S5; S6].
imports: HB(structures) mathcomp(ssreflect ssrbool ssrfun eqtype ssrnat seq div) mathcomp(choice fintype tuple finfun bigop finset fingroup) mathcomp(action perm primitive_action)