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BGonline.org Forums
Balls
Posted By: Matt Cohn-Geier In Response To: Balls (Ray Kershaw)
Date: Saturday, 12 June 2010, at 11:20 a.m.
As UBK pointed out you need at least the following implicit assumptions (if not a few others):
Y knows that X can see Y & Z's ball but not his own, is truthful, and reasons perfectly. Z knows all that and also knows the same things about Y.
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