alleryThe collection of the five most renowned mathematicians of the world is:
ANot well-defined
BWell-defined
CAn empty set
DAn infinite set
Answer & Solution
Correct answer: A. Not well-defined
1. Who counts as most renowned varies from person to person.
2. There is no fixed rule for membership.
3. So the collection is not well-defined.
_Source: syllabus Mathematics, Chapter 1, Sets._
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