Chat with our AI personalities
well-defined sets are sets that can identify easily while not well-defined are those that cannot determined easily :)
Yes, the set of happy people is not well defined.
If there exists even one single item for which you cannot say whether it is in the set or not, the set is not well defined.
Yes, they ARE.
Prime numbers have only 2 factors and their set is not well defined because they do not follow an orderly mathematical pattern.