Experiments can tell us something about the usefulness of a particular initial bias such as the one incorporated by a particular programming language with particular initial instructions. In what follows we will describe illustrative problems and results obtained using the FORTH-inspired language specified in the appendix (Section A). The latter should be consulted for the details of the instructions appearing in programs found by OOPS.
While explaining the learning system's setup, we will also try to identify several more or less hidden sources of initial bias.