[plt-scheme] Re: When does eqv? differ from eq? , from equal?

This reminds me of the question: "is a person the same one some time later?" 
His/her state almost certainly has changed. Hence in some respects the two 
are not the same. Nevertheless I am inclined to attribute a common feature 
to both the former and the later. I have had trouble with this questuion 
before. See the thread "peasant revolt against Scheme: in the archives of 
the PLT scheme discussion list)
Jos