Unary function

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The successor function, denoted ${\displaystyle \operatorname {succ} }$, is a unary operator. Its domain and codomain are the natural numbers; its definition is as follows:

$${\displaystyle {\begin{aligned}\operatorname {succ} :\quad &\mathbb {N} \rightarrow \mathbb {N} \\&n\mapsto (n+1)\end{aligned}}}$$

In some programming languages such as C, executing this operation is denoted by postfixing ++ to the operand, i.e. the use of n++ is equivalent to executing the assignment ${\displaystyle n:=\operatorname {succ} (n)}$.

Many of the

See also

• Arity
• Binary function
• Binary operator
• Ternary operation
• Unary operation

References

• Foundations of Genetic Programming

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