Check whether the given phrase describes a well-defined set or not.
“Collection of months of a year having four Sundays.”
It is a well-defined set as we can clearly identify the months having 4 Sundays. Hence it will have well-defined elements.
Check the given collection is set? If not a set, give reason
All vowels
Intelligent boys of your class
Interesting books in the library
“All odd natural numbers less than 40.”
Check whether the given phrase describes a well-defined set on not.
“All honest students in your class”