let N be non empty with_zero set ; for S being non empty with_non-empty_values IC-Ins-separated AMI-Struct over N
for e being Nat
for I being Instruction of S
for t being b2 -started State of S
for u being Instruction-Sequence of S st e .--> I c= u holds
Following (u,t) = Exec (I,t)
let S be non empty with_non-empty_values IC-Ins-separated AMI-Struct over N; for e being Nat
for I being Instruction of S
for t being b1 -started State of S
for u being Instruction-Sequence of S st e .--> I c= u holds
Following (u,t) = Exec (I,t)
let e be Nat; for I being Instruction of S
for t being e -started State of S
for u being Instruction-Sequence of S st e .--> I c= u holds
Following (u,t) = Exec (I,t)
let I be Instruction of S; for t being e -started State of S
for u being Instruction-Sequence of S st e .--> I c= u holds
Following (u,t) = Exec (I,t)
let t be e -started State of S; for u being Instruction-Sequence of S st e .--> I c= u holds
Following (u,t) = Exec (I,t)
let u be Instruction-Sequence of S; ( e .--> I c= u implies Following (u,t) = Exec (I,t) )
assume A1:
e .--> I c= u
; Following (u,t) = Exec (I,t)
A2:
e in dom (e .--> I)
by TARSKI:def 1;
IC t = e
by MEMSTR_0:def 11;
then CurInstr (u,t) =
u . e
by PBOOLE:143
.=
(e .--> I) . e
by A1, A2, GRFUNC_1:2
.=
I
by FUNCOP_1:72
;
hence
Following (u,t) = Exec (I,t)
; verum