let k be Element of NAT ; for N being non empty with_non-empty_elements set
for S being non empty IC-Ins-separated AMI-Struct of N
for P being Instruction-Sequence of S
for s being State of S holds Comput (P,s,(k + 1)) = Exec ((P . (IC (Comput (P,s,k)))),(Comput (P,s,k)))
let N be non empty with_non-empty_elements set ; for S being non empty IC-Ins-separated AMI-Struct of N
for P being Instruction-Sequence of S
for s being State of S holds Comput (P,s,(k + 1)) = Exec ((P . (IC (Comput (P,s,k)))),(Comput (P,s,k)))
let S be non empty IC-Ins-separated AMI-Struct of N; for P being Instruction-Sequence of S
for s being State of S holds Comput (P,s,(k + 1)) = Exec ((P . (IC (Comput (P,s,k)))),(Comput (P,s,k)))
let P be Instruction-Sequence of S; for s being State of S holds Comput (P,s,(k + 1)) = Exec ((P . (IC (Comput (P,s,k)))),(Comput (P,s,k)))
let s be State of S; Comput (P,s,(k + 1)) = Exec ((P . (IC (Comput (P,s,k)))),(Comput (P,s,k)))
A1:
dom P = NAT
by PARTFUN1:def 2;
thus Comput (P,s,(k + 1)) =
Following (P,(Comput (P,s,k)))
by Th4
.=
Exec ((P . (IC (Comput (P,s,k)))),(Comput (P,s,k)))
by A1, PARTFUN1:def 6
; verum