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What is referred to as a collection of definite objects?
Set
Equation
What does A ⊆ B mean?
A is a subset of B
B is a subset of A
What does b ∈ A mean?
b is an element of A
A is an element of b
What does the ∪ symbol mean?
Universal Set
Null set
What does B ⊇ A mean?
A is a superset of B
B is a superset of A
Which of the following sets refers to positive integers?
{ 0,1,2,3...}
{1,2,3...}
{-1,0,1...}
What does the symbol ∪ mean in A∪B ?
Union
Intersection
What does a ∉ B mean?
a is an element of B
a is not an element of B
What does the ∅ symbol mean?
What does the symbol ∩ mean in A∩B ?
It is done.