Definition:Natural Numbers/Zermelo Construction/Historical Note

Historical Note on Zermelo Construction of Natural Numbers
The Zermelo construction of natural numbers was devised by.

While the approach is simple, it does not generalize easily to transfinite ordinals.

As a result, it is generally considered inferior to the von Neumann construction, which has considerable advantages over it.

Hence this approach is rarely seen, and noted for historical reasons only.