Logical Constants
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Recent papers in Logical Constants
Alfred Tarski’s semantic conception of truth is arguably the most influential – certainly, most discussed - modern conception of truth. It has provoked many different interpretations and reactions, some thinkers celebrating it for... more
The main of the paper is to discuss the meaning of negation involved in the logic of First Degree Entailment in the context of a dialogical analysis of tonk-like operators The dialogical framework is an approach to meaning that provides... more
CITE AS: Corcoran, John. 1999. “Laws of thought”. Cambridge Dictionary of Philosophy. R. Audi, Ed. Cambridge: Cambridge UP. p. 489. Laws of thought are laws by which or in accordance with which valid thought proceeds, or that justify... more
1981. A note on categoricity and completeness, History and Philosophy of Logic 2, 113–19. Current study of axiomatic method presupposes concepts and results of string theory and set theory. But axiomatic method was vigorously pursued in... more
How to say no less, no more about conditional than what is needed? From a logical analysis of necessary and sufficient conditions, we argue that a proper account of conditional can be obtained by extending the logical notation of Frege's... more
How to say no less, no more about conditional than what is needed? From a logical analysis of necessary and sufficient conditions, we argue that a proper account of conditional can be obtained by extending the logical notation of Frege’s... more
Introducción Teoría del Conocimiento
Johannes Hessen Teoría del Conocimiento
Johannes Hessen Teoría del Conocimiento
Johannes Hessen Teoría del Conocimiento
JOSE ORLANDO MELO NARANJO
Johannes Hessen Teoría del Conocimiento
Johannes Hessen Teoría del Conocimiento
Johannes Hessen Teoría del Conocimiento
JOSE ORLANDO MELO NARANJO
In this long-lived book, Haack tackles just about every topic in philosophy of logic.
Este texto presenta, y en cierta medida analiza, ambigüedades existentes en textos de lógica y filosofía de la lógica (como la interpretación de los llamados principios, postulados, leyes o verdades lógicas, la coexistencia de la tesis de... more
The well-known necessary-consequence/necessary-consequent ambiguity—a species of segmentation, scope, and structural ambiguities—is found in conditional sentences such as: (A) If zero is oblong, then necessarily some square is oblong. A... more
Theory of Knowledge - International Baccalaureate Essay Subject: “A model is a simplified representation of some aspect of the world. In what ways may models help or hinder the search for knowledge?” Author: Angel Versetti... more
Libro de Regino Criado y Roberto Muñoz
Pretendemos, en esta parte, primeramente establecer una caracterización de la Lógica Matemática por comparación con la Lógica Clásica. Así hablaremos de la Lógica Matemática como una ciencia positiva, de su hiperformalismo, como de su... more
This article is focused on answering the question to what extent one can be a sceptic. Sextus Empiricus’s Outlines of Scepticism serves as a guide. In section 1, it is investigated whether three logical laws have a certain foundation or... more
In the 1970s the Chilean biologist Francisco Varela developed a systems theory of life as autopoietic, or self-creating, on the formal basis of the mathematician George Spencer-Brown's 1969 book Laws of Form. Although Varela saw the great... more
This essay discusses Wittgenstein's conception of logic, early and late, and some of the types of logical system that he constructed. The essay shows that the common view according to which Wittgenstein had stopped engaging in logic as a... more
What is a proof? What are the formal relations between proof and truth? What kind of paradoxes and possible errors do arise from an unsound use of such notions? The First Lecce Workshop in Philosophy of Logic (Filog), named "Truth, Proof... more
This paper shows why the non-trivial zeros of the Riemann zeta function ζ must always be on the critical line Re(s) = 1/2 and not anywhere else on the critical strip bounded by Re(s) = 0 and Re(s) = 1, thus affirming the validity of the... more
I argue against inferentialism about logic. First, I argue against an analogy between logic and chess, before considering a more basic objection to stipulating inference rules as a way of establishing the meaning of logical constants. The... more
The Bounds of Logic presents a new philosophical theory of the scope and nature of logic based on critical analysis of the principles underlying modern Tarskian logic and inspired by mathematical and linguistic development. Extracting... more
Three classic distinctions specify that truths can be necessary versus contingent, analytic versus synthetic, and a priori versus a posteriori. The philosopher reading this article knows very well both how useful and ordinary such... more
Contemporary accounts of the possession conditions for basic logical concepts rely on either the subject being primitively compelled by transitions that are isomorphic to the introduction and elimination rules for the logical constant or... more
In: Wittgenstein and Hegel. Reevaluation of Difference. Jakub Mácha and Alexander Berg (ed.), Boston/Berlin, De Gruyter (On Wittgenstein), 2019, pp. 291-309. https://www.degruyter.com/view/product/496759 Wittgenstein opens his preface... more
This paper shows why the non-trivial zeros of the Riemann zeta function ζ will always be on the critical line Re(s) = 1/2 and not anywhere else on the critical strip bounded by Re(s) = 0 and Re(s) = 1, thus affirming the validity of the... more
JOHN CORCORAN’S JUNE 2015 ANNOTATIONS OF TARSKI’S 1994 INTRODUCTION TO LOGIC. The immediate purpose of this posting is to provide information about Tarski’s use of ‘equals’, ‘is’, is identical to’, ‘=’, and the like to participants in the... more
This book is alleged to be a comprehensive but largely elementary description of mathematical logic including its historical development, its most important achievements and its implications for philosophy. Although the intended audience... more
This is a survey paper in German covering a number of central themes in the philosophy of logic, including the debates surrounding the notion of logical consequence, the problem of demarcating logic, logical pluralism vs. logical monism... more