Fixed Point Combinators

Fixed point combinators are special functions in computer science that, when applied to another function, produce a version of that function that, when given an input, results in the same output as applying the original function to that input. In essence, they find a "fixed point" or a stable solution where the function's output remains consistent. This concept is fundamental in understanding recursion and self-referential processes, such as defining functions that can call themselves. Fixed point combinators allow programmers to implement recursion in systems or languages where functions can't directly refer to themselves.