Set Theory Flashcards

1
Q

an unordered collection of distinct elements (items).

A

Set

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2
Q

The two main ways to construct a set using symbols.

A

Roster and Set Builder

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3
Q

Which type of set construction uses

A

Roster Notation

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4
Q

Which type of set construction uses

A

Set Builder Notation

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5
Q

“Such That” Symbol

A

(:)

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6
Q
A

The set of everything

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7
Q

The set of everything

A
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8
Q
A

The set of nothing

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9
Q

The set of nothing

A
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10
Q
A

{1, 2, 3, 4, …}

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11
Q
A

{0, 1, 2, 3, 4, …}

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12
Q
A

{…, −2, −1, 0, 1, 2, …}

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13
Q
A
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14
Q
A

The set of any positive, negative, or zero value

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15
Q

{1, 2, 3, 4, …}

A
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16
Q

{0, 1, 2, 3, 4, …}

A
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17
Q

{…, −2, −1, 0, 1, 2, …}

A
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18
Q
A
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19
Q

The set of any positive, negative, or zero value

A
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20
Q
A

The compliment of set A

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21
Q
A
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22
Q
A
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23
Q
A
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24
Q
A
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25
Q
A
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26
Q

The ___ of two sets (A and B) is the elements that are in A, but not B.

A

Difference ()

27
Q
A

{2}

28
Q
A

{3.5}

29
Q

Assume A = {1, 2, 3}, B = {2, 4, 6}, C = {3, 4, 5}, and U = {1, 2, 3, 4, 5, 6}

A

{2,3,4,5}

30
Q

Assume A = {1, 2, 3}, B = {2, 4, 6}, C = {3, 4, 5}, and U = {1, 2, 3, 4, 5, 6}

A

{2,3}

31
Q

Assume A = {1, 2, 3}, B = {2, 4, 6}, C = {3, 4, 5}, and U = {1, 2, 3, 4, 5, 6}

A

{}

32
Q

Assume A = {1, 2, 3}, B = {2, 4, 6}, C = {3, 4, 5}, and U = {1, 2, 3, 4, 5, 6}

A

{1,2,4,5,6}

33
Q
A

Element of / Membership / Containment

34
Q
A

Subset of

35
Q

Shorthand for

A
36
Q

Shorthand for

A
37
Q
A
38
Q
A
39
Q

States that two sets are equal

A

Set Equality (=)

40
Q
A

Double Negation

41
Q
A

Commutative

42
Q
A

Associative

43
Q
A

Distributive

44
Q
A

DeMorgan’s

45
Q
A

Absorption

46
Q
A

Idempotent

47
Q
A

Identity

48
Q
A

Inverse

49
Q
A

Domination

50
Q

The ___ of a set is the number of elements in it.

A

Cardinality

51
Q

denoted using surrounding bars like those of the absolute value (||).

A

Cardinality

52
Q

|{1,2,3}| =

A

3

53
Q
A

0

54
Q
A
55
Q

T or F. A set can contain itself.

A

False

56
Q

T or F. A set can’t contain itself.

A

True

57
Q

The ___ of a set (A) is the set of all subsets of A.

A

Power Set

58
Q

The cardinality of a Power Set is

A

2 to the cardinality of the original set.

59
Q

T or F. The power set of a set (A) contains A.

A

True

60
Q

T or F. The power set of a set (A) doesn’t contain A.

A

False

61
Q
A

8

62
Q
A

3

63
Q
A

Cannot be determined