let E be set ; :: thesis: for A being Subset of (E ^omega)

for k being Nat holds (A +) |^ k c= A |^.. k

let A be Subset of (E ^omega); :: thesis: for k being Nat holds (A +) |^ k c= A |^.. k

let k be Nat; :: thesis: (A +) |^ k c= A |^.. k

for k being Nat holds (A +) |^ k c= A |^.. k

let A be Subset of (E ^omega); :: thesis: for k being Nat holds (A +) |^ k c= A |^.. k

let k be Nat; :: thesis: (A +) |^ k c= A |^.. k