FOM: Braille text query

[A.P. Hazen]

I have just had a request from a vison-impaired student who wants to study
(on his own) some LOGIC and mathematics at post-secondary level.  He has
found that listening to books on tape is not as satisfactory (he is
postgraduate student in philosophy) as reading Braille.  Does anyone on the
FoM discussion group know of  a Braille version of some mathematical logic
text?  Or of a source of further information on such?

Allen Hazen
Philosophy Department
University of Melbourne