•  6
    This book presents an in-depth and critical reconstruction of Prawitz’s epistemic grounding, and discusses it within the broader field of proof-theoretic semantics. The theory of grounds is also provided with a formal framework, through which several relevant results are proved. Investigating Prawitz’s theory of grounds, this work answers one of the most fundamental questions in logic: why and how do some inferences have the epistemic power to compel us to accept their conclusion, if we have acc…Read more
  •  14
    One of Etchemendy's arguments against the Tarskian and model‐theoretic notion of logical truth is based on a reduction principle according to which a universally quantified sentence is true if, and only if, all of its instances are logically true. The reduction of logical truth to mere truth reveals that the concept of validity at play in Tarski and in model‐theory relies upon extra‐logical assumptions. A similar reduction had already been put forward by Prawitz, although not with focus on extra…Read more
  •  2
    A Partial Calculus for Dag Prawitz’s Theory of Grounds and a Decidability Issue
    In Antonio Piccolomini D’Aragona, Martin Carrier, Roger Deulofeu, Axel Gelfert, Jens Harbecke, Paul Hoyningen-Huene, Lara Huber, Peter Hucklenbroich, Ludger Jansen, Elizaveta Kostrova, Keizo Matsubara, Anne Sophie Meincke, Andrea Reichenberger, Kian Salimkhani & Javier Suárez (eds.), Philosophy of Science: Between the Natural Sciences, the Social Sciences, and the Humanities, Springer Verlag. pp. 223-244. 2018.
    We consider Dag Prawitz’s theory of grounds and suggest a formal apparatus for it. On its basis we show that the account faces a decidability issue similar to one that is often associated with BHK semantics, and propose different readings of the issue that involve different consequences.