[FOM] A quotation from Fraenkel

[David Roberts]

Hi,

in http://www.columbia.edu/~av72/papers/HPL(Review)_1996.pdf

we find an attribution:

Some decades ago, Fraenkel
and Bar-Hillel argued that “one can accept [the Axiom of Foundation] not
as an article of faith but as a convention for giving a more restricted meaning
to the word ‘set’, to be discarded once it turns out that it impedes significant
mathematical research” [Foundations of Set Theory, Second Revised Edition,
p. 89].

I checked

http://books.google.com.au/books?id=ah2bwOwc06MC&printsec=frontcover#v=onepage&q=impedes%20significant&f=false

and it is indeed there.

David Roberts