Top Concepts in Relations
- Introduction to Relation and no. of relations
- A relation R between two non-empty sets A and B is a subset of their Cartesian product A × B.
- If A = B, then the relation R on A is a subset of A × A.
- The total number of relations from a set consisting of m elements to a set consisting of n elements is 2mn.
- If (a, b) belongs to R, then a is related to b and is written as ‘a R b’. If (a, b) does not belong to R, then a is not related to b and it is written as
