Podcast
Questions and Answers
If x ∈ C, what does that imply according to the text?
If x ∈ C, what does that imply according to the text?
- x is in set A only
- x is not in set A or B
- x is in set B only
- x is in set A and B (correct)
What does it mean when two sets A and B are disjoint?
What does it mean when two sets A and B are disjoint?
- A ∩ B is the empty set (correct)
- A and B are subsets of each other
- A and B have elements in common
- A ∪ B includes all elements of A and B
If A = {1, 2, 3} and B = {2, 3, 4}, what is A ∩ B?
If A = {1, 2, 3} and B = {2, 3, 4}, what is A ∩ B?
- {2, 3} (correct)
- {2, 3, 4}
- {}
- {1, 2, 3, 4}
In the context of sets, what does x ∈ C mean?
In the context of sets, what does x ∈ C mean?
If A = {1, 2, 3} and B = {4, 5, 6}, what is A ∪ B?
If A = {1, 2, 3} and B = {4, 5, 6}, what is A ∪ B?
Which of the following best defines a set?
Which of the following best defines a set?
If set A = {1, 2, 3}, what type of set is A?
If set A = {1, 2, 3}, what type of set is A?
What kind of function is used to show that a set is countable?
What kind of function is used to show that a set is countable?
If set A = {0, 2, 4, 6, 8, ...}, what term best describes it?
If set A = {0, 2, 4, 6, 8, ...}, what term best describes it?
What is the universal set in set theory notation often represented as?
What is the universal set in set theory notation often represented as?
Which term describes a set that contains no elements?
Which term describes a set that contains no elements?
In set theory, what does the symbol ϕ represent?
In set theory, what does the symbol ϕ represent?
If A = {1, 2, 3, 4, 5, 6, 7, 8}, which of the following is true?
If A = {1, 2, 3, 4, 5, 6, 7, 8}, which of the following is true?
What does it mean if a set A is said to be not equal to {1, 2, 3}?
What does it mean if a set A is said to be not equal to {1, 2, 3}?
Which of the following statements about the union of sets A and B is correct?
Which of the following statements about the union of sets A and B is correct?
If a ∈ B implies a ∈ A, what can we conclude?
If a ∈ B implies a ∈ A, what can we conclude?
What does x ∈ C represent in the context of set theory?
What does x ∈ C represent in the context of set theory?
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