The discussion centers on the relationship between hole wave functions and electron wave functions in a solid. It posits that if one has the wave function of holes, which are solutions to the Schrödinger equation in a specific lattice environment, it is possible to derive the corresponding electron wave functions. The reasoning is based on the concept that holes represent the absence of electrons, linking their quantities directly to the total number of electrons present. Both types of wave functions operate under the same potential and boundary conditions, despite differing effective masses. This understanding allows for the exploration of electron wave functions derived from hole wave functions in solid-state physics.