set i = SubFrom (a,k1,b,k2);
A2: InsCode (halt SCMPDS) = 0 by RECDEF_2:def 1;
InsCode (SubFrom (a,k1,b,k2)) = 10 by SCMPDS_2:22;
then SubFrom (a,k1,b,k2) <> halt SCMPDS by A2;
hence SubFrom (a,k1,b,k2) is No-StopCode by COMPOS_0:def 12; :: thesis: verum