Issue: EQUAL-STRUCTURE (Version 5)

[Kent M Pitman <KMP@STONY-BROOK.SCRC.Symbolics.COM>]

My notes from Fairfax meeting...

X3J13 meeting:

 Sandra: Why not "fix" EQUALP?

 KMP: It's not fixable. Very brief discussion in writeup of why we
      didn't go with the other options might be appropriate to head
      off more questions like this at vote time.

 Masinter: Just to see how arbitrary the choice of equality operators
	   is, note that there is no overlap between any of the Interlisp 
	   equality operators and the Common Lisp ones!

 Beckerle: There would be an extremely high cost to making any change
	   to EQUALP. There would be lots of "sleeping" errors, for
	   which no error could be signalled -- programs would just
	   behave incorrectly in subtle ways.

 Someone (Slater?) asked why not add keyword arguments?

 KMP: Among other things, this would mean that EQUALP couldn't be
      a hash table predicate.