Set Theory And Logic Quiz
11 Questions
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Quiz for math students
Questions and Answers
- 1.A set is:
- A.
Collection of objects
- B.
Well-defined collection of objects
- C.
Elements of the set
- D.
Descriprion
- E.
Collection
- 2.The symbol ∈ means:
- A.
Is not an element of
- B.
Is descriprion
- C.
Is an element of
- D.
Does not belong
- 3.3 ∈{1,3,7}
- A.
True
- B.
False
- 4.For larger sets:
- A.
The description method is used and it is more convenient
- B.
The description method is not used
- C.
The description method is never used
- 5.Z = {. . . ,−2,−1, 0, 1, 2, . . .} is the set of integers.
- A.
True
- B.
False
- 6.N = {0, 1, 2, 3, . . .} is the set of integers.
- A.
True
- B.
False
- 7.All elements of all the sets under discussion belong to some universal set or universe .
- A.
True
- B.
False
- 8.The emty set is the set containing no elements .
- A.
True
- B.
False
- 9.Let A and B be sets. A equals B,written A=B,iff every element of A is also an element of B,and conversely,every element of B is also an element of A.
- A.
True
- B.
False
- 10.Theorem. There is only one empty set,ie. only two empty sets are equal.
- A.
True
- B.
False
- 11.Let A and B be sets.Then A=B iff A belongs B
- A.
True
- B.
False
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