let N be with_zero set ; :: thesis: for S being non empty with_non-empty_values IC-Ins-separated Mem-Struct over N
for l being Nat holds DataPart (Start-At (l,S)) = {}
let S be non empty with_non-empty_values IC-Ins-separated Mem-Struct over N; :: thesis: for l being Nat holds DataPart (Start-At (l,S)) = {}
let l be Nat; :: thesis: DataPart (Start-At (l,S)) = {}
Data-Locations misses {(IC )} by XBOOLE_1:79;
then Data-Locations misses dom (Start-At (l,S)) ;
hence DataPart (Start-At (l,S)) = {} by RELAT_1:66; :: thesis: verum