anthologia : gathering flowers (spiffynamehere) wrote in thequestionclub,

Set Theory!

I tutor math grades 4-8 or so, and I got a question that involved the prime f of a set. I wound up having to pass it on because frantic googling only came up with abstract bits and something about inversions. Can anyone point me towards an easier-to-understand explanation of how it works? :|a

Don't know/don't care: SO MY 21ST BIRTHDAY IS COMING UP. :D What did you do/plan to do for yours?
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