ANSWER QUESTION 7 : Are there well-defined sets in Exercise 6 for which we may n

Question

ANSWER QUESTION 7 :

Are there well-defined sets in Exercise 6 for which we may not know the answer to the question "Is x an element of this set?" for every object x? Are there finite sets in Exercise 6 for which we do not know the cardinality? Determine whether the sets below are well-defined or not. For each well-defined set, state whether it is finite or infinite. The set of women pregnant with twins at some time during this year. The set of kangaroos in Australia. The set of tall buildings. The set of grains of sand on the earth. The set of even integers. The set of hairs on your head. The collection of all subsets of the set of hairs on your head. The set of people who shook hands with George Washington.

Explanation / Answer

Sorry. a) No, if that is possible then the set itself will be not well defined. b) All well defined Infinite sets

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