Paul Rubin wrote: > Mark Dickinson <[EMAIL PROTECTED]> writes: >>> But the IEEE standard only supports one of them, aleph(0). >>> Technically two: plus and minus aleph(0). >> Not sure that alephs have anything to do with it. > > They really do not. The extended real line can be modelled in set > theory, but the "infinity" in it is not a cardinal as we would > normally treat them in set theory.
Georg Cantor disagrees. Whether Aleph 1 is the cardinality of the set of real numbers is provably undecidable. http://mathworld.wolfram.com/ContinuumHypothesis.html -- http://mail.python.org/mailman/listinfo/python-list