Null set
A null set is the same as an "empty
set." A null set is a set with no members
(or elements). The symbol for the null set is
on the right.
It can also be written as an empty set of set
brackets:
{
}
Putting the null set symbol inside the set brackets
is a bad thing... But, is a common mistake, so
don't do it! |
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Number
A number represents the value
or quantity of something... Like how much money you
have... Or how many marbles you have... Or how tall
you are. |
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