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University of East Anglia·Mirna Džamonja
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On Wide Aronszajn Trees
An exploration of wide Aronszajn trees, their role in set-theoretic model theory, and their application as 'clocks' in Ehrenfeucht–Fraïssé games for comparing models of size ℵ1.
Oxford Set Theory Seminar/ Bristol Logic and Set Theory Seminar