Def  !x:A. P(x) == x:A. x is the x:A. P(x)

is mentioned by

Thm*  n:{1...}. !f:(Prime). f is a factorization of n

[fta_mset]

In prior sections: LogicSupplement

Try larger context: DiscrMathExt IF YOU CAN SEE THIS go to /sfa/Nuprl/Shared/Xindentation_hack_doc.html