let E be set ; :: thesis: for A being Subset of (E ^omega )
for m, n being Nat holds (A |^ m,n) ? c= A *
let A be Subset of (E ^omega ); :: thesis: for m, n being Nat holds (A |^ m,n) ? c= A *
let m, n be Nat; :: thesis: (A |^ m,n) ? c= A *
(A |^ m,n) ? = (A |^ m,n) |^ 0 ,1 by Th79;
hence (A |^ m,n) ? c= A * by Th71; :: thesis: verum