FYI.
I just made up the name Postiats. There is no particular meaning to it.
Just like the letter 'lambda' in lambda-calculus was chosen for no particular reason
(which I learned from Dana Scott, who learned it from the son-in-law of Alonzo Church,
the inventor of lambda-calculus).
I once designed and implemented a language called Xanadu. I chose the name Xanadu
for that language to mean something powerful, exotic and mysterious. See the following
poem by Coleridge:
So I recycled the name Xanadu here. When writing ATS/Xanadu, I mean that the language is
called ATS and the implementation is called Xanadu. More precisely, it should be ATS3/Xananu
(ATS3 for the third edition of ATS).
Cheers,
--Hongwei