Nuprl - Proof: hfact wd

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At: hfact wd

and(equal(fact(0),1),all(

n:hnum. equal(fact(suc(n)),mult(suc(n),fact(n)))))

By:	HN THEN StrongAuto THEN Try (Complete (Unfold `label` 0))

Generated subgoal:

1 1. n :
fact(n+1) = (n+1)fact(n)
2 steps

About:

IF YOU CAN SEE THIS go to http://www.cs.cornell.edu/Info/People/sfa/Nuprl/Shared/Xindentation_hack_doc.html