let p be Instruction-Sequence of SCM+FSA; :: thesis: for s being State of SCM+FSA
for a being read-write Int-Location
for I being Program of SCM+FSA
for k being Element of NAT st ((StepWhile=0 (a,I,p,s)) . k) . a <> 0 holds
DataPart ((StepWhile=0 (a,I,p,s)) . (k + 1)) = DataPart ((StepWhile=0 (a,I,p,s)) . k)

let s be State of SCM+FSA; :: thesis: for a being read-write Int-Location
for I being Program of SCM+FSA
for k being Element of NAT st ((StepWhile=0 (a,I,p,s)) . k) . a <> 0 holds
DataPart ((StepWhile=0 (a,I,p,s)) . (k + 1)) = DataPart ((StepWhile=0 (a,I,p,s)) . k)

let a be read-write Int-Location ; :: thesis: for I being Program of SCM+FSA
for k being Element of NAT st ((StepWhile=0 (a,I,p,s)) . k) . a <> 0 holds
DataPart ((StepWhile=0 (a,I,p,s)) . (k + 1)) = DataPart ((StepWhile=0 (a,I,p,s)) . k)

let I be Program of SCM+FSA; :: thesis: for k being Element of NAT st ((StepWhile=0 (a,I,p,s)) . k) . a <> 0 holds
DataPart ((StepWhile=0 (a,I,p,s)) . (k + 1)) = DataPart ((StepWhile=0 (a,I,p,s)) . k)

let k be Element of NAT ; :: thesis: ( ((StepWhile=0 (a,I,p,s)) . k) . a <> 0 implies DataPart ((StepWhile=0 (a,I,p,s)) . (k + 1)) = DataPart ((StepWhile=0 (a,I,p,s)) . k) )
assume A1: ((StepWhile=0 (a,I,p,s)) . k) . a <> 0 ; :: thesis: DataPart ((StepWhile=0 (a,I,p,s)) . (k + 1)) = DataPart ((StepWhile=0 (a,I,p,s)) . k)
set SW = StepWhile=0 (a,I,p,s);
set PW = p +* (while=0 (a,I));
A2: (p +* (while=0 (a,I))) +* (while=0 (a,I)) = p +* (while=0 (a,I)) by FUNCT_4:93;
A3: while=0 (a,I) c= p +* (while=0 (a,I)) by FUNCT_4:25;
A5: DataPart (Initialize ((StepWhile=0 (a,I,p,s)) . k)) = DataPart ((StepWhile=0 (a,I,p,s)) . k) by MEMSTR_0:79;
then A6: ((StepWhile=0 (a,I,p,s)) . k) . a = (Initialize ((StepWhile=0 (a,I,p,s)) . k)) . a by SCMFSA6A:7;
thus DataPart ((StepWhile=0 (a,I,p,s)) . (k + 1)) = DataPart (Comput (((p +* (while=0 (a,I))) +* (while=0 (a,I))),(Initialize ((StepWhile=0 (a,I,p,s)) . k)),((LifeSpan (((p +* (while=0 (a,I))) +* I),(Initialize ((StepWhile=0 (a,I,p,s)) . k)))) + 3))) by A2, SCMFSA_9:def 4
.= DataPart ((StepWhile=0 (a,I,p,s)) . k) by A1, A5, A6, Th22, A2, A3 ; :: thesis: verum