e. that of effective computability. It is also natural to ask whether the concept of feasible computability described in Section 1 itself admits a mathematical analysis similar to Church’s Thesis. We saw above that \(\sc{FACTORIZATION}\) is an example of a problem of antecedent mathematical and practical interest for which more efficient algorithms have historically been sought. The task of efficiently solving combinatorial problems of the sort exemplified by \(\sc{TSP}\), \(\sc{INTEGER}\