  This situation changed in the 1960s. The 1969 volume of the JSL contained 39 articles by mathematicians, and only nine by philosophers. By the early 1970s, many philosophers felt that philosophical papers on logic were unlikely to be accepted by the JSL, and that if they were accepted they were unlikely to be read by philosophers. At this point, the goals of the two groups had diverged considerably. Mathematicians were pursuing the development of an increasingly technical and complex body of methods and theorems. Many philosophers felt that this pursuit was increasingly irrelevant to the goal of illuminating philosophical issues. These divisions led to the founding of the Journal of Philosophical Logic in 1972. The list of sample topics in the first issue included: