Doubt in set of perfect squares

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Sayali Yadav

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Oct 6, 2020, 8:15:47 AM10/6/20

to Discussion forum for Mathematics for Data Science I

While describing natural numbers the lecturer said that the set of natural numbers start with 0(zero) and by definition of perfect squares Zero can be considered as a perfect square so why didn't we consider zero as an element of a set of perfect squares.

Can we say this,

A set of perfect squares= {0,1,4,9,16,25} ?

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