1. Kerr, Fergus, Theology after Wittgenstein, Basil Blackwell, Oxford, 1985, p.ix.
2. Carnap Archive at the University of Pittsburgh, document no. 102–78–07, diary entry on 20 June 1927.
3. For Wittgenstein’s relation to phenomenology, see my paper, “Ludwig Wittgenstein as a Philosopher of Immediate Experience”, in: R. Haller and J. Brandt (eds.), Wittgenstein: Towards a Reevaluation, Hölder-Pichler-Tempsky, Vienna, 1990, pp.155–167.
4. McGuinness, Brian (ed.), Ludwig Wittgenstein and the Vienna Circle, Basil Blackwell, Oxford, 1979, p.254.
5. Anscombe, G.E.M., An Introduction to Wittgenstein’s “Tractatus”, 2nd ed., Hutchinson, London, pp.25–28.