Munich Center for Mathematical Philosophy (MCMP)

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Workshop: Abstract Objects and Circularity (6 - 7 July 2019)

Idea & Motivation

This workshop brings together philosophers and logicians working on (meta-ontological) questions pertaining to the existence of abstract objects and issues arising from circularly defined concepts (e.g. paradoxes), with a special focus on truth, properties, numbers, and abstraction principles.

Confirmed Speakers



Saturday (July 6)

11:00 - 12:00 Thomas Hofweber: The Unrevisability of Logic
12:15 - 13:15 Leon Horsten: Arbitrary Objects Revisited
13:15 - 14:45 Lunch Break
14:45 - 15:45 Edoardo Rivello: Recursive Definitions of Truth
16:00 - 17:00 Benjamin Marshall: Carnap’s Defence of Abstract Objects
17:00 - 17:30 Coffee Break
17:30 - 18:30 Catrin Campbell-Moore: Revision Theory and the Supervaluational Kripkean Theory
19:30 Dinner

Sunday (July 7)

11:00 - 12:00 Andrea Cantini: Abstract Objects in Truth-theoretic Setting
12:15 - 13:15 Jody Azzouni: The Implicature View of Ontological Commitments and Denials
13:15 - 14:45 Lunch Break
14:45 - 15:45 Riccardo Bruni: Circular Definitions, Circular Patterns, and (Circular) Norms
15:45 - 16:15 Coffee Break
16:15 - 17:15 Roy Cook: Grundgesetze Section 10


For information about practical matters and registration, please contact Thomas Schindler at


  • Regular fee: 50 EUR;
  • reduced fee (for graduate students): 30 EUR;
  • Members of the MCMP and LMU: registration free of charge.

To register please send a message to Thomas Schindler at


LMU München
80539 München
Room V005

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This workshop is funded by the Deutsche Forschungsgemeinschaft (DFG), as part of the project "Reference patterns of paradox".