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Call for Papers – CCA 2020

Call for Papers Seventeenth International Conference on       Computability and Complexity in Analysis (CCA 2020)      http://cca-net.de/cca2020/ September…

Zoom Talk by Harrington

Dear all,    A talk about Harrington’s notes on “the hyperdegrees of reals in pruducts of uncountable Σ11 sets ”…

A sad message

Today, April 14, my former teacher, and for many years, colleague and friend, Jens Erik Fenstad, passed away after a…

Online Logic Seminar

Dear Colleagues, You are invited to the new Online Logic Seminar. This seminar will be held weekly on Thursdays, 1pm…

Logic Colloquium 2020

Logic Colloquium 2020 Call for Papers July 13-18, 2020, Poznań, Poland https://lc2020.pl/* The Logic Colloquium is the European Summer Meeting…