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At:
delete fenum value wf gen P,Q:(Prop), f:({u:| P(u) }{v:| Q(v) }).
Inj({k:| P(k) }; {k:| Q(k) }; f)
(m:{u:| P(u) }, k:{v:| Q(v) }.
((Replace value k by f(m) in f)
( {u:| P(u) & u = m }{v:| Q(v) & v = k })
1. P : Prop
2. Q : Prop
3. f : {u:| P(u) }{v:| Q(v) }
4. Inj({k:| P(k) }; {k:| Q(k) }; f)
5. m : {u:| P(u) }
6. k : {v:| Q(v) }
(Replace value k by f(m) in f) {u:| P(u) & u = m }{v:| Q(v) & v = k }
7 steps
About:
IF YOU CAN SEE THIS go to /sfa/Nuprl/Shared/Xindentation_hack_doc.html