



 
No, it means that it is not a cardinal number. If you are this interested in this topic, you had better start at the beginning with a good set theory textbook and work your way through it, doing all the exercises. (Or take a course in the subject; that would probably be more fun if the other students are keen.) You clearly want to know about this in more depth than we can provide in a few emails. Good Hunting!  


Math Central is supported by the University of Regina and The Pacific Institute for the Mathematical Sciences. 