Sort - Less than Operator
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About
less than is a comparison operator that creates a binary relationship.
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Representation
Set of tuples
The relation less than or equal to (<=) on the set of integers {1, 2, 3} is the following set of tuple
<1, 1>,
<1, 2>,
<1, 3>,
<2, 2>,
<2, 3>,
<3, 3>
Visual
The relationship less than or equal between y and x (ie y <= x) can be represented in the set <math>R</math> against <math>R^2</math> as the below gray area:
