let k1, k2 be Integer; :: thesis: for a, b being Int_position holds not MultBy (a,k1,b,k2) is halting
let a, b be Int_position ; :: thesis: not MultBy (a,k1,b,k2) is halting
consider s being State of SCMPDS;
(Exec ((MultBy (a,k1,b,k2)),s)) . (IC SCMPDS) = succ (IC s) by Th63;
hence not MultBy (a,k1,b,k2) is halting by Th76; :: thesis: verum