let s be State of SCM+FSA; :: thesis: for a being Int-Location
for p being Instruction-Sequence of SCM+FSA
for I being really-closed InitHalting keepInt0_1 Program of SCM+FSA
for J being really-closed InitHalting Program of SCM+FSA holds (IExec ((I ";" J),p,s)) . a = (IExec (J,p,(IExec (I,p,s)))) . a

let a be Int-Location; :: thesis: for p being Instruction-Sequence of SCM+FSA
for I being really-closed InitHalting keepInt0_1 Program of SCM+FSA
for J being really-closed InitHalting Program of SCM+FSA holds (IExec ((I ";" J),p,s)) . a = (IExec (J,p,(IExec (I,p,s)))) . a

let p be Instruction-Sequence of SCM+FSA; :: thesis: for I being really-closed InitHalting keepInt0_1 Program of SCM+FSA
for J being really-closed InitHalting Program of SCM+FSA holds (IExec ((I ";" J),p,s)) . a = (IExec (J,p,(IExec (I,p,s)))) . a

let I be really-closed InitHalting keepInt0_1 Program of SCM+FSA; :: thesis: for J being really-closed InitHalting Program of SCM+FSA holds (IExec ((I ";" J),p,s)) . a = (IExec (J,p,(IExec (I,p,s)))) . a
let J be really-closed InitHalting Program of SCM+FSA; :: thesis: (IExec ((I ";" J),p,s)) . a = (IExec (J,p,(IExec (I,p,s)))) . a
( IExec ((I ";" J),p,s) = IncIC ((IExec (J,p,(IExec (I,p,s)))),(card I)) & not a in dom (Start-At (((IC (IExec (J,p,(IExec (I,p,s))))) + (card I)),SCM+FSA)) ) by ;
hence (IExec ((I ";" J),p,s)) . a = (IExec (J,p,(IExec (I,p,s)))) . a by FUNCT_4:11; :: thesis: verum