LSV Seminar

The LSV seminar takes place on Tuesday at 11:00 AM. The usual location is the conference room at Pavillon des Jardins (venue). If you wish to be informed by e-mail about upcoming seminars, please contact Stéphane Le Roux and Matthias Fuegger.

The seminar is open to public and does not require any form of registration.

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Generalized Goodstein sequences

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 Andreas Weiermann
Date
Monday, November 27 2017 at 11:00AM
Place
Salle Renaudeau (Bâtiment Laplace)
Speaker
Andreas Weiermann (Ghent University)

We define generalized Goodstein sequences with respect to the Ackermann function. Depending on the choice of the starting function the resulting Goodstein principles will then be of varying large complexity and not be provable in first Peano order arithmetic and related theories. The results are partly in joint work with T. Arai and S. Wainer.


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Agenda

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Tue, Feb 19

Past seminars