let P be Instruction-Sequence of SCM+FSA; for s being State of SCM+FSA
for I, J being Program of SCM+FSA
for a being read-write Int-Location st s . a = 0 & J is_closed_on Initialized s,P & J is_halting_on Initialized s,P holds
IExec ((if<0 (a,I,J)),P,s) = (IExec (J,P,s)) +* (Start-At (((((card I) + (card J)) + (card J)) + 7),SCM+FSA))
let s be State of SCM+FSA; for I, J being Program of SCM+FSA
for a being read-write Int-Location st s . a = 0 & J is_closed_on Initialized s,P & J is_halting_on Initialized s,P holds
IExec ((if<0 (a,I,J)),P,s) = (IExec (J,P,s)) +* (Start-At (((((card I) + (card J)) + (card J)) + 7),SCM+FSA))
let I, J be Program of SCM+FSA; for a being read-write Int-Location st s . a = 0 & J is_closed_on Initialized s,P & J is_halting_on Initialized s,P holds
IExec ((if<0 (a,I,J)),P,s) = (IExec (J,P,s)) +* (Start-At (((((card I) + (card J)) + (card J)) + 7),SCM+FSA))
let a be read-write Int-Location ; ( s . a = 0 & J is_closed_on Initialized s,P & J is_halting_on Initialized s,P implies IExec ((if<0 (a,I,J)),P,s) = (IExec (J,P,s)) +* (Start-At (((((card I) + (card J)) + (card J)) + 7),SCM+FSA)) )
assume A1:
s . a = 0
; ( not J is_closed_on Initialized s,P or not J is_halting_on Initialized s,P or IExec ((if<0 (a,I,J)),P,s) = (IExec (J,P,s)) +* (Start-At (((((card I) + (card J)) + (card J)) + 7),SCM+FSA)) )
assume that
A2:
J is_closed_on Initialized s,P
and
A3:
J is_halting_on Initialized s,P
; IExec ((if<0 (a,I,J)),P,s) = (IExec (J,P,s)) +* (Start-At (((((card I) + (card J)) + (card J)) + 7),SCM+FSA))
thus IExec ((if<0 (a,I,J)),P,s) =
(IExec (J,P,s)) +* (Start-At ((((card (if>0 (a,J,I))) + (card J)) + 3),SCM+FSA))
by A1, A2, A3, Th17
.=
(IExec (J,P,s)) +* (Start-At ((((((card I) + (card J)) + 4) + (card J)) + 3),SCM+FSA))
by Th15
.=
(IExec (J,P,s)) +* (Start-At (((((card I) + (card J)) + (card J)) + 7),SCM+FSA))
; verum