popper-logic-scientific-discovery

APPENDIX *i
Two Notes on Induction and
Demarcation, 1933–1934
The first of the two notes here republished is a Letter to the Editor of
Erkenntnis. The second is a contribution to a discussion at a philosophical
conference in Prague, 1934. It was published in Erkenntnis in 1935, as
part of the report on the conference.
1
The letter to the Editor was first published in 1933, in Erkenntnis, 3 (i.e.
Annalen der Philosophie, 11) no. 4–6, pp. 426 f. I have broken up some of the
paragraphs, for easier reading.
The letter was evoked by the fact that my views, at the time, were
being widely discussed by members of the Vienna Circle, even in print
(cf. note 3), although none of my own manuscripts (which had been
read by some members of the Circle) had been published, partly
because of their length: my book, Logik der Forschung, had to be cut to a
fraction of its original length, to be acceptable for publication. The
emphasis, in my letter, upon the difference between the problem of a
criterion of demarcation and the pseudo-problem of a criterion of meaning
(and upon the contrast between my views and those of Schlick and
Wittgenstein) was provoked by the fact that even in those days my