How much we can extend meaurable sets?
This was first done by Szpilrajn (1935) and later strengthened to non separable extensions by Kakutani and Kodaira (1950). Ciesielski gives a short proof of the non existence of any maximal such extension here.
This was first done by Szpilrajn (1935) and later strengthened to non separable extensions by Kakutani and Kodaira (1950). Ciesielski gives a short proof of the non existence of any maximal such extension here.