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The nondenumerable set of Real Numbers, denoted 
.  It satisfies
| (1) | 
| (2) | 
| (3) | 
| (4) | 
The Continuum Hypothesis, first proposed by Georg Cantor, 
 holds that the
Cardinal Number of the continuum is the same as that of Aleph-1.  The surprising truth is
that this proposition is Undecidable, since neither it nor its converse contradicts the tenets of Set
Theory.
See also Aleph-0, Aleph-1, Continuum Hypothesis, Denumerable Set