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A comment on The "Surprise Exam" paradox. Parent comment

Re:The "Surprise Exam" paradox by davnola on Friday December 16, 2011 @11:26AM (#3361111)
The students' anticipations of the exam are their anticipations of the exam. I don't see the circularity yet. It's clearer in the Liar Paradox.
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Re:The "Surprise Exam" paradox by ajuc on Friday December 16, 2011 @12:26PM (#3361312)
Circularity is here:

    P( exam is today | P(exam is today | exam was not earlier) = 1) = 0
EDIT: if this is good formalisation of proffesor sentence. I'm not 100% sure.
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