They are called the natural numbers
because they are the first to have
crossed paths with human intellect . Think about it: these are the
numbers we count things with. So our ancestors
used these numbers first to count, and they came to us naturally! Hence the
name
NATURAL!!!
The natural numbers form a subset
of a larger class of numbers called the integers.
I have used the word SUBSET. From now onwards we will just think
of SET as a COLLECTION OF THINGS.
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