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DTSTART:20260308T070000
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DTSTART:20251102T060000
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UID:6a2b0c27be7e0
DTSTART;TZID=America/Toronto:20260618T133000
SEQUENCE:0
TRANSP:TRANSPARENT
DTEND;TZID=America/Toronto:20260618T150000
URL:https://uwaterloo.ca/pure-mathematics/events/computability-learning-sem
 inar-173
SUMMARY:Computability Learning Seminar
CLASS:PUBLIC
DESCRIPTION:BEINING MU\, UNIVERSITY OF WATERLOO\n\n_Thickness Lemma and Inf
 inite Injury Priority Argument _\n\nIn this talk\, I will present Strong T
 hickness Lemma\, which states that\nevery piecewise computable c.e. set ha
 s a thick subset which lies\noutside of an upper cone of a non-computable 
 c.e. set\, as an example\nof infinite injury priority argument. In additio
 n\, I will discuss how\nthickness lemma implies the lack of least upper bo
 und for infinite\nascending c.e. degrees.\n\nMC 5403
DTSTAMP:20260611T192735Z
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