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The union of two sets and
is the set obtained by combining the members of each. This is written
, and
is pronounced ``
union
'' or ``
cup
.'' The union of sets
through
is written
.
Let ,
,
, ... be sets, and let
denote the probability of
. Then
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(1) |
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(2) |
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(3) |
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(4) |
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(5) |
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(6) |
See also Intersection, Or