set w = the State of SCM;
set t = the State of SCM +* (((dl. 0),(dl. 1)) --> (1,0));
A15: InsCode (MultBy (a,b)) = 4 by RECDEF_2:def 1
.= InsCode (MultBy ((dl. 0),(dl. 1))) by RECDEF_2:def 1 ;
A16: dom (((dl. 0),(dl. 1)) --> (1,0)) = {(dl. 0),(dl. 1)} by FUNCT_4:65;
then dl. 0 in dom (((dl. 0),(dl. 1)) --> (1,0)) by TARSKI:def 2;
then A17: ( the State of SCM +* (((dl. 0),(dl. 1)) --> (1,0))) . (dl. 0) = (((dl. 0),(dl. 1)) --> (1,0)) . (dl. 0) by FUNCT_4:14
.= 1 by AMI_3:52, FUNCT_4:66 ;
A18: dl. 0 in Data-Locations SCM by AMI_3:73;
dl. 1 in dom (((dl. 0),(dl. 1)) --> (1,0)) by A16, TARSKI:def 2;
then A19: ( the State of SCM +* (((dl. 0),(dl. 1)) --> (1,0))) . (dl. 1) = (((dl. 0),(dl. 1)) --> (1,0)) . (dl. 1) by FUNCT_4:14
.= 0 by FUNCT_4:66 ;
(Exec ((MultBy ((dl. 0),(dl. 1))),( the State of SCM +* (((dl. 0),(dl. 1)) --> (1,0))))) . (dl. 0) = (( the State of SCM +* (((dl. 0),(dl. 1)) --> (1,0))) . (dl. 0)) * (( the State of SCM +* (((dl. 0),(dl. 1)) --> (1,0))) . (dl. 1)) by AMI_3:11
.= 0 by A19 ;
hence for b₁ being InsType of SCM st b₁ = InsCode (MultBy (a,b)) holds
not b₁ is jump-only by A15, A17, AMISTD_1:def 3, A18; :: thesis: verum