Problem 1TFE: True or False Label each of the following statements as either true or false. Two sets are equal if... Problem 2TFE: True or False
Label each of the following statements as either true or false.
2. If is a subset of ... Problem 3TFE: True or False
Label each of the following statements as either true or false.
3. The empty set is a... Problem 4TFE: True or False Label each of the following statements as either true or false. AA= for all sets A. Problem 5TFE Problem 6TFE: True or False Label each of the following statements as either true or false. AA for all sets A. Problem 7TFE: True or False
Label each of the following statements as either true or false.
7.
Problem 8TFE: True or False
Label each of the following statements as either true or false.
8.
Problem 9TFE: True or False Label each of the following statements as either true or false. AB=CB implies A=C, for... Problem 10TFE: True or False Label each of the following statements as either true or false. AB=AC implies B=C, for... Problem 1E Problem 2E: 2. Decide whether or not each statement is true for and .
a. b.
c. d.
e. f.
Problem 3E: Decide whether or not each statement is true. (a) a{a,{a}} (b) {a}{a,{a}} (c) {a}{a,{a}} (d)... Problem 4E: 4. Decide whether or not each of the following is true for all sets .
a. b.
c. d.
e. ... Problem 5E Problem 6E: 6. Determine whether each of the following is either , , , or , where is an arbitrary subset of the... Problem 7E Problem 8E: 8. Describe two partitions of each of the following sets.
a. b.
c. ... Problem 9E Problem 10E Problem 11E Problem 12E: 12. Let Z denote the set of all integers, and let
Prove that .
Problem 13E: 13. Let Z denote the set of all integers, and let
Prove that .
Problem 14E Problem 15E Problem 16E: In Exercises , prove each statement.
16. If and , then .
Problem 17E: In Exercises , prove each statement.
17. if and only if .
Problem 18E: In Exercises , prove each statement.
18.
Problem 19E Problem 20E: In Exercises 1435, prove each statement. (AB)=AB Problem 21E Problem 22E Problem 23E: In Exercises 14-35, prove each statement.
23.
Problem 24E Problem 25E: In Exercise 14-35, prove each statement. If AB, then ACBC. Problem 26E: In Exercise 14-35, prove each statement.
26. If then .
Problem 27E: In Exercise 14-35, prove each statement.
27.
Problem 28E Problem 29E: In Exercises 14-35, prove each statement.
29.
Problem 30E: In Exercises 14-35, prove each statement. (AB)C=(AC)(BC) Problem 31E: In Exercises 1435, prove each statement. (AB)(AB)=A Problem 32E: In Exercises 1435, prove each statement. U(AB)=(UA)(UB) Problem 33E: In Exercises , prove each statement.
33.
Problem 34E: In Exercises , prove each statement.
34. if and only if
Problem 35E: In Exercises 1435, prove each statement. AB if and only if AB=A. Problem 36E: Prove or disprove that AB=AC implies B=C. Problem 37E: Prove or disprove that AB=AC implies B=C. Problem 38E: 38. Prove or disprove that .
Problem 39E Problem 40E: 40. Prove or disprove that .
Problem 41E: Express (AB)(AB) in terms of unions and intersections that involve A,A,B,andB Problem 42E: 42. Let the operation of addition be defined on subsets by. Use a Venn diagram with labelled regions... Problem 43E: 43. Let the operation of addition be as defined in Exercise 42. Prove each of the following... format_list_bulleted