let k be Element of NAT ; for a, b being Data-Location holds IncAddr (MultBy a,b),k = MultBy a,b
let a, b be Data-Location ; IncAddr (MultBy a,b),k = MultBy a,b
InsCode (MultBy a,b) = 4
by MCART_1:7;
hence
IncAddr (MultBy a,b),k = MultBy a,b
by Def3; verum