It is not necessarily representable. By diagonalization, in fact, nat -> nat can be shown to be uncountably infinite. Intuitively, an example nat -> nat function that is uncomputable is ~Ld, the function that, given a…
It is not necessarily representable. By diagonalization, in fact, nat -> nat can be shown to be uncountably infinite. Intuitively, an example nat -> nat function that is uncomputable is ~Ld, the function that, given a…