COMMENT ⊗   VALID 00002 PAGES
C REC  PAGE   DESCRIPTION
C00001 00001
C00002 00002	\\M1BASL30\M2BASB30\M3NGR25\M4NGR20\M5BUCK75\F2\CSTANFORD UNIVERSITY
C00003 ENDMK
C⊗;
\\M1BASL30;\M2BASB30;\M3NGR25;\M4NGR20;\M5BUCK75;\F2\CSTANFORD UNIVERSITY
\F3\CSTANFORD, CALIFORNIA 94305
\F4COMPUTER SCIENCE DEPARTMENT\←L\-R\/'7;\+R\→.\→S   Telephone:
\←S\→.415-497-4971
\F1\CJan 4, 1974



\CRegarding \F5CLU\F1



Dear Barbara:

\JGee, my concept of set doesn't say that all the elements must be of the
same "type". I would like to form {1, 2, 3} ∪ {APPLE, PEACH, RUTABAGA}.
How do you do it; can you give me a clue?
\.
\←L\→S\←R\-L\/'2;\+L\→L

Yours sincerely,



A friend
\←S\→L