Home › Events › Logic Seminar: Thanases Pheidas - Purdue and University of Crete Logic Seminar: Thanases Pheidas - Purdue and University of Crete Time: Thu Apr 24, 2014, 2:00 pm - 3:00 pm Location: 125 Hayes-Healy Center Title: Undecidable Diophantine Problems: Uniformity Questions Abstract