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 P being Instruction-Sequence of S
for s being State of S
for i being Instruction of S holds (Exec ((P . (IC s)),s)) . (IC ) = IC (Following (P,s))
let S be non empty with_non-empty_values IC-Ins-separated AMI-Struct over N; for P being Instruction-Sequence of S
for s being State of S
for i being Instruction of S holds (Exec ((P . (IC s)),s)) . (IC ) = IC (Following (P,s))
let P be Instruction-Sequence of S; for s being State of S
for i being Instruction of S holds (Exec ((P . (IC s)),s)) . (IC ) = IC (Following (P,s))
let s be State of S; for i being Instruction of S holds (Exec ((P . (IC s)),s)) . (IC ) = IC (Following (P,s))
let i be Instruction of S; (Exec ((P . (IC s)),s)) . (IC ) = IC (Following (P,s))
NAT = dom P
by PARTFUN1:def 2;
hence
(Exec ((P . (IC s)),s)) . (IC ) = IC (Following (P,s))
by PARTFUN1:def 6; verum