Paul LaFollette <paul.lafolle...@gmail.com> writes: > So, what I would like is some sort of object that is a "kind of" > everything but contains nothing, a unique minimal element of the > partial ordering imposed on the set of classes by the inheritance > heierarchy. Whilst I am not naive mathematically, I am relatively > naive in the area of language design. In my naivete, it seemed to me > that None could have been designed to be such a thing. Apparently > that is incorrect.
I don't remember if I linked to this article: http://en.wikibooks.org/wiki/Haskell/Denotational_semantics You might like it. If you want to learn some contemporary programming language theory at a mathematical level, start with Harper's "Practical Foundations for Programming Languages": http://www.cs.cmu.edu/~rwh/plbook/book.pdf -- http://mail.python.org/mailman/listinfo/python-list