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# Mathematics part 3 (tests MEI)

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**27.09.2013**

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# Description

Task 1

Question 1. Let A and B - set. What is the record?

1. Set A is a proper subset of the set, which is a true subset of the set-set A

2. Sets A and B are endless

3. The sets A and B are finite

4. The sets A and B are not empty

5. The sets A and B are equal

Question 2. Let A be a non - empty set of all students at the school, in - a lot of fifth grade students of this school, C - the set of seventh grade students of this school. Which records expresses a false statement? (Parentheses here, as in arithmetic expressions, set procedures).

1.

2.

3.

4.

5.

Question 3. Which of the following statements is not always (not for any sets A, B, C) is true?

1.

2.

3.

4.

5.

Question 4. Let - a lot of days of the week, as well - a lot of days in January. What is the cardinality of the set?

1. 38

2. 217

3. 365

4. 31

5. 7

Question 5: Consider the set of the clock that can be asserted with respect to the element and the sets? .

1.

2.

3.

4.

5.

Task 2

Question 1. Consider the G line between A and B. In a case called line-specific INDICATES everywhere?

1.

2.

3.

4.

5.

Question 2. Assume that there exists a one-to-one correspondence between the sets G and B. What can be said about their powers?

1.

2.

3.

4.

5.

Question 3. What is the function is not a superposition of features,?

1.

2.

3.

4.

5.

Question 4. Consider a binary relation R on the set M. What can be asserted on the R, if the ratio is transitive?

1. If it is the case

2. If, then if and only if

3. The set M is not a member of this that is done

4. If the elements a, b, c of M is performed and not performed

5. where - transitive closure R

Question 5. What property does not have a lax attitude about R?

1. Reflexivity

2. Transitivity

3. Antisymmetric

4. where - transitive closure R

5. Symmetry

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