let p be Instruction-Sequence of SCM+FSA; for s being State of SCM+FSA
for a being read-write Int-Location
for I being parahalting Program of SCM+FSA holds ProperBodyWhile=0 a,I,s,p
let s be State of SCM+FSA; for a being read-write Int-Location
for I being parahalting Program of SCM+FSA holds ProperBodyWhile=0 a,I,s,p
let a be read-write Int-Location ; for I being parahalting Program of SCM+FSA holds ProperBodyWhile=0 a,I,s,p
let I be parahalting Program of SCM+FSA; ProperBodyWhile=0 a,I,s,p
let k be Element of NAT ; SCMFSA9A:def 1 ( ((StepWhile=0 (a,I,p,s)) . k) . a = 0 implies ( I is_closed_on (StepWhile=0 (a,I,p,s)) . k,p +* (while=0 (a,I)) & I is_halting_on (StepWhile=0 (a,I,p,s)) . k,p +* (while=0 (a,I)) ) )
assume
((StepWhile=0 (a,I,p,s)) . k) . a = 0
; ( I is_closed_on (StepWhile=0 (a,I,p,s)) . k,p +* (while=0 (a,I)) & I is_halting_on (StepWhile=0 (a,I,p,s)) . k,p +* (while=0 (a,I)) )
thus
I is_closed_on (StepWhile=0 (a,I,p,s)) . k,p +* (while=0 (a,I))
by SCMFSA7B:18; I is_halting_on (StepWhile=0 (a,I,p,s)) . k,p +* (while=0 (a,I))
thus
I is_halting_on (StepWhile=0 (a,I,p,s)) . k,p +* (while=0 (a,I))
by SCMFSA7B:19; verum