let s be State of SCM+FSA ; :: thesis: for J being Program of SCM+FSA
for Ig being good Program of SCM+FSA st ( Ig is parahalting or ( Ig is_halting_on Initialize s & Ig is_closed_on Initialize s ) ) & ( J is parahalting or ( J is_halting_on IExec Ig,s & J is_closed_on IExec Ig,s ) ) holds
DataPart (IExec (Ig ';' J),s) = DataPart (IExec J,(IExec Ig,s))
let J be Program of SCM+FSA ; :: thesis: for Ig being good Program of SCM+FSA st ( Ig is parahalting or ( Ig is_halting_on Initialize s & Ig is_closed_on Initialize s ) ) & ( J is parahalting or ( J is_halting_on IExec Ig,s & J is_closed_on IExec Ig,s ) ) holds
DataPart (IExec (Ig ';' J),s) = DataPart (IExec J,(IExec Ig,s))
let Ig be good Program of SCM+FSA ; :: thesis: ( ( Ig is parahalting or ( Ig is_halting_on Initialize s & Ig is_closed_on Initialize s ) ) & ( J is parahalting or ( J is_halting_on IExec Ig,s & J is_closed_on IExec Ig,s ) ) implies DataPart (IExec (Ig ';' J),s) = DataPart (IExec J,(IExec Ig,s)) )
set I = Ig;
assume A1: ( ( Ig is parahalting or ( Ig is_halting_on Initialize s & Ig is_closed_on Initialize s ) ) & ( J is parahalting or ( J is_halting_on IExec Ig,s & J is_closed_on IExec Ig,s ) ) ) ; :: thesis: DataPart (IExec (Ig ';' J),s) = DataPart (IExec J,(IExec Ig,s))
then A2: for a being Int-Location holds (IExec (Ig ';' J),s) . a = (IExec J,(IExec Ig,s)) . a by Th8;
for f being FinSeq-Location holds (IExec (Ig ';' J),s) . f = (IExec J,(IExec Ig,s)) . f by A1, Th9;
hence DataPart (IExec (Ig ';' J),s) = DataPart (IExec J,(IExec Ig,s)) by A2, SCMFSA6A:38; :: thesis: verum