The simple answer is, everything in mathematics -- numbers, functions, relations, algebraic structures, geometric figures, infinite sequences and series, etc. -- can be defined in terms of sets. And their properties can be proved from the axioms of set theory. There's more to it than that, but that's a start.
Model will set as an example and pattern
the spaeker of the house
It set up a government for the NW territory.
goal set for how much you expect to be produced
it's where all the time in the world is set from
A set of data that has been ordered according to their magnitude or importance.
The importance of the domain of ethics to organizations is that they have a set of rules or principles which they abide by. This makes it easy to enhance professionalism in the organizations.
It helps to determine the average It helps to make comments/anlysis of set of values
They improve the way of life for all beings who can at least set one up.
A select committee
Team work is the cooperation of a group of induvidulas to achieve a set goal with best practice
It develops the power to apply logic and logic in an integral part of mathematics.