Question

No element of a set is repeated while writing a set by the blank
method.​

Answer 1

Answer:

Step-by-step explanation:

If one or more elements are repeated, the set remains the same.

Suppose I have two sets, A and B:

A={1,2,3,4,5}B={1,1,2,3,4}

Set A is valid, but set B isn't because not all of its elements are unique. My question is, why can't sets contain duplicate elements?