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Re: (eq #'f #'f) and :TEMPORARY hash tables
> To my knowledge, only Symbolics and Lucid have any hooks for
> permitting random :test functions to be used in hash tables
> (Lucid's facilities are not "exported" to the end customer),
> and neither of these implementations has the EQ/EQP difficulty
> on global functions.
Pop11's properties (hash tables to us) allow the user to specify
a predicate and a hash function. It also (to judge from PopLog
Common Lisp) lacks the EQ/EQP difficulty.