Set Theory

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18 Terms

1
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W

Whole numbers - 0, 1, 2,…

2
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N

natural numbers - 1,2,3,…, infinity

3
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Z

integers; -Infinity,…,-1, 0, 1,…, Infinity

4
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Q

rational numbers; whole, fractions

5
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P

irrational

6
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R

real; any

7
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C

complex

8
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| or :

such that

9
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∉

Not a component of

10
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⊆

Subset or equal

11
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⊂

Proper subset; not equal

12
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⊄

Not a Subset

13
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⊇

Superset or equal

14
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⊃

proper superset; not equal

15
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⊅

Not a Superset

16
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Ø

Empty set; phi

17
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|A| or n{A}

Cardinality; number of terms

18
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P(X)

Power set; all combinations of set including empty