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Set Theory
Set Theory
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Terms in this set (27)
set
a group or collection of objects
elements or members
objects contained in a set
roster method & word statement
two ways sets can be specified
does not matter
order of elements in a set
do not repeat
elements in a set
empty set
a set with no elements
equal set
sets that contain the exact same elements
equivalent sets
sets that contain the same number of elements
matching sets
sets that contain the same number of elements
subset
Set A is a subset of Set B if everything in Set A is in Set B
empty set
The _____ ____ is a subset of every set.
subset
Every set is a ______ of itself.
union
The ____ of 2 sets is the single set that has all the elements in either set.
intersection
The ____ of 2 sets is the single set contained all those elements that they have in common.
finite set
a set that has a definite number of elements (you can count them)
infinite set
a set that cannot be counted (1, 2, 3...)
disjoint set
two sets that do not have anything in common
universal set
the set from which all subsets are selected in a discussion
∅
symbol for null set or empty set
∩
symbol for intersection
∪
symbol for union
∈
symbol for "members of"
∉
symbol for "not a member of "
⊄
symbol for "not a subset of"
c
symbol for "subset of"
U (capital dark U)
symbol for Universal set
{ }
symbol for empty set or null set
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