let k be Element of NAT ; :: thesis: for a, b being Int-Location holds IncAddr (MultBy a,b),k = MultBy a,b
let a, b be Int-Location ; :: thesis: IncAddr (MultBy a,b),k = MultBy a,b
A1:
InsCode (MultBy a,b) = 4
by SCMFSA_2:45;
not 4 in {6,7,8}
by ENUMSET1:def 1;
hence
IncAddr (MultBy a,b),k = MultBy a,b
by A1, Def3; :: thesis: verum