Onto Or Surjective Function

Onto or Surjective function

graph TB A[Onto or Surjective function] A --> B[Definition] A --> C[Properties] A --> D[Examples] B --> E["A function f: X -> Y is said to be onto or surjective if every element of Y has a pre-image in X"] C --> F["Every onto function has a right inverse"] C --> G["If f: X -> Y is onto and X is finite, then Y is finite"] D --> H["f: R -> R defined by f(x) = 2x + 3 is surjective"] D --> I["f: Z -> Z defined by f(n) = 2n is not surjective"]


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