Seminar

Title: A proof mining case study on the unit interval Speaker: Andrei Sipoș (University of Bucharest & IMAR) Abstract:  In 1991, Borwein and Borwein proved the following: if L>0, f

Title:  Exponential Diophantine equations over ℚ Speaker: Mihai Prunescu (University of Bucharest & IMAR) Abstract: In a previous exposition we have seen that the solvability over ℚ is undecidable for

Title: Unwinding of proofs Speaker: Pedro Pinto (TU Darmstadt) Abstract: The unwinding of proofs program dates back to Kreisel in the fifties and rests on the following broad question: “What