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The Set Theory symbol for a Set having the same Cardinal Number as the ``small'' Infinite
Set of Integers. The Algebraic Numbers also belong to .
Rather surprising properties satisfied by
include
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(1) |
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(2) |
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(3) |
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(4) |
See also Aleph-1, Cardinal Number, Continuum, Continuum Hypothesis, Countably Infinite Set, Finite, Infinite, Transfinite Number, Uncountably Infinite Set