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

From: Shriram Krishnamurthi (sk at cs.brown.edu)
Date: Mon Oct 6 22:36:29 EDT 2008

Using numbers to drive a wedge between EQ? and EQV? doesn't really do
much to persuade me.  I never use EQ? for numbers, only =.  I only use
EQ? when comparing structured (and inevitably mutable) objects, for
which EQ? is a semantically meaningful operation.


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