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␈↓ ↓H␈↓␈↓βS␈↓∧ Artificial Intelligence Laboratory, STANFORD UNIVERSITY, Stanford, California 94305

␈↓ ↓H␈↓∧Telephone 415 497-4430␈↓ 
≤May 20, 1980 




␈↓ ↓H␈↓Professor  K.S. Hsu
␈↓ ↓H␈↓Institute of Computers
␈↓ ↓H␈↓Academia Sinica
␈↓ ↓H␈↓Peking, China

␈↓ ↓H␈↓Dear Professor Hsu:

␈↓ ↓H␈↓        Mr.␈αTang␈αZhesong's␈αstay␈αwith␈αus␈αhas␈αproved␈αmutually␈αbene≡cial,␈αand␈αwe␈αhave␈αbeen␈αable␈αto
␈↓ ↓H␈↓≡nd␈α
$500␈α
per␈α
month␈α
to␈α
support␈α
his␈α
stay␈α
until␈α
June␈α
30,␈α
1981.␈α
 Since␈α
I␈α
will␈α
return␈α
from␈α
my␈αleave
␈↓ ↓H␈↓this June, I expect we will have more interaction in the following year.


␈↓ ↓H␈↓Sincerely,



␈↓ ↓H␈↓John McCarthy
␈↓ ↓H␈↓Director
␈↓ ↓H␈↓Professor of Computer Science

␈↓ ↓H␈↓cc: Tang Zhesong