1. Cf. the position paper, p. 3ff above. This fusion is at work in Aristotle: cf. von Fritz, Kurt, ‘Die ARXAI in der griechischen Mathematik’, Archiv für Begriffsgeschichte I, 21ff. (1955), for a discussion of the Aristotelian definition of knowledge. The fusion is accentuated by Descartes, and is still at work in various strands of twentieth century philosophy, e.g. the work of Hugo Dingier.
2. For a detailed discussion, see my Traktat über kritische Vernunft, third edition, Mohr, Tübingen, 1975.
3. Following Popper, it has been above all William Warren Bartley who has done great service in demonstrating in detail the possibility of separating the idea of rational criticism from the idea of absolute justification. See Bartley, W. W., The Retreat to Commitment, Augustus Kelley, New York, 1962, p. 134ff.
4. Cf. Lakatos, I., ‘Infinite Regress and Foundations of Mathematics’, Suppl. Vol. Aristotelian Society
XXXVI, 155ff. (1962).
5. Cf. Barth, E. M., Evaluaties, Vam Gorcum, Assen, 1972, pp. 5–18.