Do the following exercises.
Tell whether each of the following sets is well-defined or not.
1. The set of admiring places.
2. The set of all counting numbers
3. The set of workaholic teachers.
4. The set of letters in the word “father”.
5. The set of all factors of 36.
Give the cardinality of the following sets.
1. The set of counting numbers from 5 to 25
2. The set of letters in the word “seven”
3. D = {1, 2, 3, 4, 5}
4. A = {m, o, d, u, l, e}
5. Y = {4, 8, 12, …, 36}
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Answer:
1. Not well-defined
2. Well-defined
3. Not well-defined
4. Well-defined
5. Well-defined
(Diko na po alam yung iba sorry)