International Conference: The Concept of Actual Infinity. Spinoza, before and beyond

PARIS

7-8 APRIL 2025

7 April 2025

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Amphithéâtre Turing, bâtiment Sophie Germain, Pl. Aurélie Nemours, 75013 Paris

9.30 – 9.45

Welcome and Institutional Greetings

9.45 – 10.45

Hourya Sinaceur (CNRS)

Bolzano’s concept of actual infinite

- COFFEE BREAK –

11.00 – 12.00

José Ferreirós (Universidad de Sevilla)

Prelude to Cantor: Riemann, Dedekind and actual infinity

LUNCH

14.00 – 15.00

Juliette Kennedy (University of Helsinki)

Set theory as a theory of the infinite

- COFFEE BREAK –

15.15 – 16.15

Paolo Mancosu (University of California, Berkeley)

How many points are in a line segment? From Grosseteste to numerosities.

16.15 – 17.15

Warren Zev Harvey (Hebrew University of Jerusalem)

Actual Infinity in the Philosophy of Hasdai Crescas

DINNER

8 April 2025

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Salle Valentin, Batiment Condorcet, 4 rue Elsa Morante, 75013 Paris

9.30 – 10.30

João Cortese (University of São Paulo)

Pascal and Actual Infinity

10.30 – 11.30

Connor Morrison (Johns Hopkins University)

Newtonian Moral Infinity

- COFFEE BREAK -

11.45 – 12.45

Jean-Pascal Anfray (ENS)

The concept of indefinite in Descartes

LUNCH

14.30 – 15.30

Claire Schwartz (Université Paris Nanterre)

Malebranche and the names of actual infinity

- COFFEE BREAK –

15.45 – 16.45

Hao Dong (Johns Hopkins University) [on Zoom]

Infinity and Contingency in Leibniz and Spinoza

16.45 – 17.45

Filippo Costantini (CNRS, ERC Philiumm)

Leibniz on infinite regresses