let a be Int-Location ; for s being State of SCM+FSA
for P being Instruction-Sequence of SCM+FSA
for i being parahalting keeping_0 Instruction of SCM+FSA
for j being parahalting Instruction of SCM+FSA holds (IExec ((i ';' j),P,s)) . a = (Exec (j,(Exec (i,(Initialized s))))) . a
let s be State of SCM+FSA; for P being Instruction-Sequence of SCM+FSA
for i being parahalting keeping_0 Instruction of SCM+FSA
for j being parahalting Instruction of SCM+FSA holds (IExec ((i ';' j),P,s)) . a = (Exec (j,(Exec (i,(Initialized s))))) . a
let P be Instruction-Sequence of SCM+FSA; for i being parahalting keeping_0 Instruction of SCM+FSA
for j being parahalting Instruction of SCM+FSA holds (IExec ((i ';' j),P,s)) . a = (Exec (j,(Exec (i,(Initialized s))))) . a
let i be parahalting keeping_0 Instruction of SCM+FSA; for j being parahalting Instruction of SCM+FSA holds (IExec ((i ';' j),P,s)) . a = (Exec (j,(Exec (i,(Initialized s))))) . a
let j be parahalting Instruction of SCM+FSA; (IExec ((i ';' j),P,s)) . a = (Exec (j,(Exec (i,(Initialized s))))) . a
set Mi = Macro i;
thus (IExec ((i ';' j),P,s)) . a =
(IExec (((Macro i) ';' j),P,s)) . a
.=
(Exec (j,(IExec ((Macro i),P,s)))) . a
by Th7
.=
(Exec (j,(Exec (i,(Initialized s))))) . a
by Th6
; verum