[comp.lang.prolog] Mac PROLOG needed!

andy@gistdev.gist.com (Andy Warinner) (01/23/90)

I am looking for a good PROLOG compiler for my Mac.  I have heard of the
following products:

	AAIS PROLOG  (Advanced AI Systems)
	ALS PROLOG (Applied Logic Systems)
	ExperPROLOG II (ExperTelligence)
	MacPROLOG (Logic Programming Associates)

How do these products stack up?  Do they have full access to the 
Toolbox?  How good are their development environments?  Most 
importantly, can I get any of these products mail-order or do I
have to pay list price?  Any comments are welcome.  Pointers to
good introductory texts on PROLOG would be welcome too.

Thanks in advance,

Andrew Warinner    | "Semper ubi sub ubi" - J. Caesar
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