This book provides philosophers and logicians with a broad spectrum of views on contemporary research on the problem of deduction, its justification and explanation. The variety of distinct approaches exemplified by the single chapters allows for a dialogue between perspectives that, usually, barely communicate with each other.

The contributions concern (in a possibly intertwined way) three major perspectives in logic: philosophical, historical, formal. The philosophical perspective has to do with the relationship between deductive validity and truth, and questions the...

This book explores innovative applications of conceptual engineering to specific case studies beyond philosophy. Conceptual engineering is described a method for reframing philosophy as a problem-solving method of direct relevance for, and bearing on, areas of practical concern. Based on lectures at the Conceptual Engineering Online Seminar 2020/2022 by leading philosophers, it opens new perspectives on a wide array of topics in relation to issues of high scientific, social, and political significance. This book is a must-read for professional philosophers, experts in metaphilosophy or...

This book celebrates and explores some philosophical issues raised by the work of Alan Weir, who is Professor Emeritus at the University of Glasgow, having previously held positions at the Universities of Oxford, Edinburgh and Queen’s, Belfast. In a number of areas, Weir has elaborated strikingly original views which involve a radical departure from the mainstream. These include formalism in the philosophy of mathematics, and as well as naïve set theory, with a universal set, and a naïve theory of truth. In contrast to other contemporary defenders of the latter two...

This volume is a collection of essays related to the work of Professor Yuriy Vasilievich Ivlev, a distinguished Russian logician and philosopher renowned for his expertise in many-valued and modal logics. Notably, his groundbreaking work on quasi-matrices for logics, now recognized as non-deterministic matrices and non-deterministic semantics, emerged in the 1970s. From a philosophical standpoint, Ivlev’s research delves into the formal analysis of indeterminacy, offering a logical framework to understand how sequences of indeterminate events can yield determinate outcomes. The...

This edited volume is the first systematic philosophical investigation of the complex and multifarious relationships between dreaming and memory. Featuring fifteen contributions by leading researchers, it explores a range of issues that arise when dreaming and memory are considered together. What does one remember when one remembers what one dreamt, and what is it for a memory of a dream to be accurate? What are the phenomenological, cognitive, and epistemic similarities and dissimilarities between dreaming and remembering? How does the self figure in dreams and memories? The book...