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DTSTART:20170312T070000
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DTSTART;TZID=America/Toronto:20170404T150000
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URL:https://uwaterloo.ca/pure-mathematics/events/computability-learning-sem
 inar-65
SUMMARY:Computability Learning Seminar
CLASS:PUBLIC
DESCRIPTION:JONNY STEPHENSON\, DEPARTMENT OF PURE MATHEMATICS\, UNIVERSITY 
 OF\nWATERLOO\n\n\"Co-spectra\"\n\nThe co-spectrum of a structure is the fa
 mily of sets coded by the\nstructure. This is a measure of how well we can
  encode information in\nthe structure. We will see that every countable id
 eal in the e-degrees\nis the co-spectrum of a structure\, and give a gener
 alization of\nRichter's result on c.e.-minimal pairs.\n\nMC 5403
DTSTAMP:20260607T130847Z
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