consider w being State of SCM;
set t = w +* (((dl. 0),(dl. 1)) --> (0,1));
A9: InsCode (SubFrom (a,b)) = 3 by RECDEF_2:def 1
.= InsCode (SubFrom ((dl. 0),(dl. 1))) by RECDEF_2:def 1 ;
A10: dom (((dl. 0),(dl. 1)) --> (0,1)) = {(dl. 0),(dl. 1)} by FUNCT_4:65;
then dl. 0 in dom (((dl. 0),(dl. 1)) --> (0,1)) by TARSKI:def 2;
then A11: (w +* (((dl. 0),(dl. 1)) --> (0,1))) . (dl. 0) = (((dl. 0),(dl. 1)) --> (0,1)) . (dl. 0) by FUNCT_4:14
.= 0 by AMI_3:52, FUNCT_4:66 ;
XX: dl. 0 in Data-Locations SCM by AMI_3:73;
dl. 1 in dom (((dl. 0),(dl. 1)) --> (0,1)) by A10, TARSKI:def 2;
then A13: (w +* (((dl. 0),(dl. 1)) --> (0,1))) . (dl. 1) = (((dl. 0),(dl. 1)) --> (0,1)) . (dl. 1) by FUNCT_4:14
.= 1 by FUNCT_4:66 ;
(Exec ((SubFrom ((dl. 0),(dl. 1))),(w +* (((dl. 0),(dl. 1)) --> (0,1))))) . (dl. 0) = ((w +* (((dl. 0),(dl. 1)) --> (0,1))) . (dl. 0)) - ((w +* (((dl. 0),(dl. 1)) --> (0,1))) . (dl. 1)) by AMI_3:10
.= - 1 by A11, A13 ;
hence for b₁ being InsType of SCM st b₁ = InsCode (SubFrom (a,b)) holds
not b₁ is jump-only by A9, A11, AMISTD_1:def 3, XX; :: thesis: verum