Primitive recursive set function

A **primitive recursive set function** is a concept from mathematical logic and theoretical computer science, particularly in the theory of computable functions. It refers to a function defined using a specific class of functions that are called primitive recursive functions. ### Primitive Recursive Functions Primitive recursive functions are a subset of total functions from natural numbers to natural numbers. They include basic functions such as: 1. **Zero Function**: \( Z(n) = 0 \) for all \( n \).