let R be good Ring; for c being Data-Location of R
for i1 being Element of NAT
for s being State of (SCM R) holds
( (Exec (goto i1,R),s) . (IC (SCM R)) = i1 & (Exec (goto i1,R),s) . c = s . c )
let c be Data-Location of R; for i1 being Element of NAT
for s being State of (SCM R) holds
( (Exec (goto i1,R),s) . (IC (SCM R)) = i1 & (Exec (goto i1,R),s) . c = s . c )
let i1 be Element of NAT ; for s being State of (SCM R) holds
( (Exec (goto i1,R),s) . (IC (SCM R)) = i1 & (Exec (goto i1,R),s) . c = s . c )
let s be State of (SCM R); ( (Exec (goto i1,R),s) . (IC (SCM R)) = i1 & (Exec (goto i1,R),s) . c = s . c )
Y:
the Object-Kind of (SCM R) = SCM-OK R
by Def1;
reconsider S = s as SCM-State of R by Y, PBOOLE:155;
reconsider i = 6 as Element of Segm 8 by NAT_1:45;
reconsider I = goto i1,R as Element of SCM-Instr R by Def1;
I = [i,<*i1*>,{} ]
;
then A2:
I jump_address = i1
by SCMRING1:18;
A3: Exec (goto i1,R),s =
SCM-Exec-Res I,S
by Th12
.=
SCM-Chg S,(I jump_address )
by SCMRING1:def 14
;
thus (Exec (goto i1,R),s) . (IC (SCM R)) =
(Exec (goto i1,R),s) . NAT
by Def1
.=
i1
by A3, A2, SCMRING1:10
; (Exec (goto i1,R),s) . c = s . c
c is Element of SCM-Data-Loc
by Th1;
hence
(Exec (goto i1,R),s) . c = s . c
by A3, SCMRING1:11; verum