Created attachment 32746 [details] Page 7 first formula. Pi it's see as different (!=), Mayus delta as empty set (math symbol cross O). I use epdf/evince/okular, wrong characters.libpoppler 0.12.0 version.(Ubuntu 9.10 version) Xpdf 3.02 shows it ok. evince 2.2.2 with 0.6.4 libpoppler shows it ok.(Ubuntu Hardy 8.04)
*** This bug has been marked as a duplicate of bug 26139 ***
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