let p be non NAT -defined autonomic FinPartState of ; for s1, s2 being State of SCM st p c= s1 & p c= s2 holds
for i being Element of NAT
for da, db being Data-Location
for I being Instruction of SCM st I = CurInstr ((ProgramPart s1),(Comput ((ProgramPart s1),s1,i))) & I = AddTo (da,db) & da in dom p holds
((Comput ((ProgramPart s1),s1,i)) . da) + ((Comput ((ProgramPart s1),s1,i)) . db) = ((Comput ((ProgramPart s2),s2,i)) . da) + ((Comput ((ProgramPart s2),s2,i)) . db)
let s1, s2 be State of SCM; ( p c= s1 & p c= s2 implies for i being Element of NAT
for da, db being Data-Location
for I being Instruction of SCM st I = CurInstr ((ProgramPart s1),(Comput ((ProgramPart s1),s1,i))) & I = AddTo (da,db) & da in dom p holds
((Comput ((ProgramPart s1),s1,i)) . da) + ((Comput ((ProgramPart s1),s1,i)) . db) = ((Comput ((ProgramPart s2),s2,i)) . da) + ((Comput ((ProgramPart s2),s2,i)) . db) )
assume A1:
( p c= s1 & p c= s2 )
; for i being Element of NAT
for da, db being Data-Location
for I being Instruction of SCM st I = CurInstr ((ProgramPart s1),(Comput ((ProgramPart s1),s1,i))) & I = AddTo (da,db) & da in dom p holds
((Comput ((ProgramPart s1),s1,i)) . da) + ((Comput ((ProgramPart s1),s1,i)) . db) = ((Comput ((ProgramPart s2),s2,i)) . da) + ((Comput ((ProgramPart s2),s2,i)) . db)
let i be Element of NAT ; for da, db being Data-Location
for I being Instruction of SCM st I = CurInstr ((ProgramPart s1),(Comput ((ProgramPart s1),s1,i))) & I = AddTo (da,db) & da in dom p holds
((Comput ((ProgramPart s1),s1,i)) . da) + ((Comput ((ProgramPart s1),s1,i)) . db) = ((Comput ((ProgramPart s2),s2,i)) . da) + ((Comput ((ProgramPart s2),s2,i)) . db)
let da, db be Data-Location ; for I being Instruction of SCM st I = CurInstr ((ProgramPart s1),(Comput ((ProgramPart s1),s1,i))) & I = AddTo (da,db) & da in dom p holds
((Comput ((ProgramPart s1),s1,i)) . da) + ((Comput ((ProgramPart s1),s1,i)) . db) = ((Comput ((ProgramPart s2),s2,i)) . da) + ((Comput ((ProgramPart s2),s2,i)) . db)
let I be Instruction of SCM; ( I = CurInstr ((ProgramPart s1),(Comput ((ProgramPart s1),s1,i))) & I = AddTo (da,db) & da in dom p implies ((Comput ((ProgramPart s1),s1,i)) . da) + ((Comput ((ProgramPart s1),s1,i)) . db) = ((Comput ((ProgramPart s2),s2,i)) . da) + ((Comput ((ProgramPart s2),s2,i)) . db) )
assume A2:
I = CurInstr ((ProgramPart s1),(Comput ((ProgramPart s1),s1,i)))
; ( not I = AddTo (da,db) or not da in dom p or ((Comput ((ProgramPart s1),s1,i)) . da) + ((Comput ((ProgramPart s1),s1,i)) . db) = ((Comput ((ProgramPart s2),s2,i)) . da) + ((Comput ((ProgramPart s2),s2,i)) . db) )
set Cs2i1 = Comput ((ProgramPart s2),s2,(i + 1));
set Cs2i = Comput ((ProgramPart s2),s2,i);
T:
ProgramPart s2 = ProgramPart (Comput ((ProgramPart s2),s2,i))
by AMI_1:123;
A3: Comput ((ProgramPart s2),s2,(i + 1)) =
Following ((ProgramPart s2),(Comput ((ProgramPart s2),s2,i)))
by EXTPRO_1:4
.=
Exec ((CurInstr ((ProgramPart (Comput ((ProgramPart s2),s2,i))),(Comput ((ProgramPart s2),s2,i)))),(Comput ((ProgramPart s2),s2,i)))
by T
;
assume that
A4:
I = AddTo (da,db)
and
A5:
( da in dom p & ((Comput ((ProgramPart s1),s1,i)) . da) + ((Comput ((ProgramPart s1),s1,i)) . db) <> ((Comput ((ProgramPart s2),s2,i)) . da) + ((Comput ((ProgramPart s2),s2,i)) . db) )
; contradiction
TY:
ProgramPart s2 = ProgramPart (Comput ((ProgramPart s2),s2,i))
by AMI_1:123;
I = CurInstr ((ProgramPart s2),(Comput ((ProgramPart s2),s2,i)))
by A1, A2, Th87;
then A6:
(Comput ((ProgramPart s2),s2,(i + 1))) . da = ((Comput ((ProgramPart s2),s2,i)) . da) + ((Comput ((ProgramPart s2),s2,i)) . db)
by A3, A4, TY, AMI_3:9;
set Cs1i1 = Comput ((ProgramPart s1),s1,(i + 1));
set Cs1i = Comput ((ProgramPart s1),s1,i);
A7:
( da in dom p implies ( ((Comput ((ProgramPart s1),s1,(i + 1))) | (dom p)) . da = (Comput ((ProgramPart s1),s1,(i + 1))) . da & ((Comput ((ProgramPart s2),s2,(i + 1))) | (dom p)) . da = (Comput ((ProgramPart s2),s2,(i + 1))) . da ) )
by FUNCT_1:72;
T:
ProgramPart s1 = ProgramPart (Comput ((ProgramPart s1),s1,i))
by AMI_1:123;
TX:
ProgramPart s1 = ProgramPart (Comput ((ProgramPart s1),s1,i))
by AMI_1:123;
Comput ((ProgramPart s1),s1,(i + 1)) =
Following ((ProgramPart s1),(Comput ((ProgramPart s1),s1,i)))
by EXTPRO_1:4
.=
Exec ((CurInstr ((ProgramPart (Comput ((ProgramPart s1),s1,i))),(Comput ((ProgramPart s1),s1,i)))),(Comput ((ProgramPart s1),s1,i)))
by T
;
then
(Comput ((ProgramPart s1),s1,(i + 1))) . da = ((Comput ((ProgramPart s1),s1,i)) . da) + ((Comput ((ProgramPart s1),s1,i)) . db)
by A2, A4, TX, AMI_3:9;
hence
contradiction
by A1, A7, A5, A6, EXTPRO_1:def 9; verum