let E be set ; :: thesis: for A being Subset of holds A |^ 0 ,0 = {(<%> E)}
let A be Subset of ; :: thesis: A |^ 0 ,0 = {(<%> E)}
thus A |^ 0 ,0 = A |^ 0 by Th22
.= {(<%> E)} by FLANG_1:25 ; :: thesis: verum