The problem of choosing the inference rule to employ

This article is the second of a series of articles discussing various open research problems in automated reasoning. The problem proposed for research focuses on finding criteria or metarules for choosing the inference rule(s) to be employed by the automated reasoning program in use when instructing the program to complete a specific assignment. We include actual experiments that illustrate the difficulty of making an appropriate choice.This work was supported by the Applied Mathematical Sciences subprogram of the Office of Energy Research, U.S. Department of Energy, under contract W-31-109-Eng-38.