> --------------------------------- > > B' = {x in X | x is not an element of f'(X)} > = { 1 2 3 5 6 8 10 11 12 13 14 15 16 18 19 20 ...} > > C' = {x in Y | x is not an element of f'(Y)} > = { 1 2 3 5 6 8 10 11 12 13 14 15 16 18 19 20 ...} > > ---------------------------------- > > That is: the 'missing subset' of any' infinite set of subsets are the same, > depending on the enumeration not the data in the set. > > Herc
I changed X instead of f there!
C' = {x in X | x is not an element of f'(X)} = { 1 2 3 5 6 8 10 11 12 13 14 15 16 18 19 20 ...}
