Editorial Note This paper was read by Michael Dummett at Leiden University on September 26, 1992 the invitation Göran Sundholm to address topic mentioned in title. Dummett’s lecture part of a workshop, Meaning Theory and Intuitionism , with 12 invited speakers over three days. After gave copy manuscript together permission publish it. At time, nothing came publication plans, nor did it any othe...

This paper describes an exegetical puzzle that lies at the heart of Frege’s writings—how to reconcile his logicism with definitions and claims about definitions. It also reviews two interpretations try resolve this puzzle: “explicative interpretation” “analysis interpretation.” defends explicative interpretation critiques careful sophisticated defenses analysis given by Michael Dummett Patricia...

From the perspective of semiotics, or a science of signs, communication exceeds the usual verbal mode of expression and covers extra linguistic modes. This paper addresses a specific communicative system represented by Tarot pictures. The semiotic approach not only presents Tarot as exceeding its function as a game but also de-mystifies, in part, its occult side by virtue of the analysis of sem...

This paper discusses Michael Dummett’s criticism of the Neo-Fregean conception of the context principle. I will present four arguments by Dummett that purport to show that the context principle is incompatible with platonism. I discuss and ultimately reject each argument. I will close this paper by identifying what I take to be a deeprooted tension in the Neo-Fregean project which might have mo...

Jednym z głównych pytań w filozofii logiki jest to, czy jedna, wiele logik. Pytanie to doczekało się różnych odpowiedzi, które formułują opozycyjne stanowiska: monizm logiczny contra pluralizm logiczny. Za reprezentatywnego przedstawiciela monizmu uznawany Willard Van Orman Quine, a pluralizmu — Susan Haack. Oba te stanowiska są kontynuowane współcześnie: (m.in. Michael Dummett, Graham Priest, ...

Any intermediate propositional logic (i.e., a including intuitionistic and contained in classical logic) can be extended to calculus with epsilon- tau-operators critical formulas. For logic, this results Hilbert’s -calculus. The first second -theorems for establish conservativity of the -calculus over its base logic. It is well known that -theorem fails -calculus, as prenexation impossible. pap...

Michael Dummett’s 1987 Bologna lectures, published in German translation as Ursprünge der analytischen Philosophie1 and in an enlarged English version in 1993 as Origins of Analytical Philosophy,2 constitute a very minor part of his oeuvre. None of the essays in the 2007 Library of Living Philosophers volume3 mentions them, which is fair enough, since the vast bulk of Dummett’s considerable ach...

The focus of this paper are Dummett’s meaning-theoretical arguments against classical logic based on consideration about the meaning of negation. Using Dummettian principles, I shall outline three such arguments, of increasing strength, and show that they are unsuccessful by giving responses to each argument on behalf of the classical logician. What is crucial is that in responding to these arg...