Another method of defining a set is by using a rule or semantic description. The notation 2 S is used because given any set with exactly two elements the powerset of S can be identified with the set of all functions from S into that set. In set-builder notation the previous set looks like this.
A Set is a collection of things often numbers.
A2 Set-builder notation We will often build a new set by selecting elements from other sets and. This video is provided by the Learning Assistance Center of Howard C. The end-point values are written between brackets or parentheses. How to define sets with both the roster or list method and using set-builder notation.