This paper explores Victoria Welby's fundamental assumption of meaning process (“semiosis” sensu Peirce) as translation, and some implications for the development of a general model of intersemiotic translation.

A recent report by the Swedish National Council for Crime Prevention in cooperation with the Swedish Security Service shows that the Internet has been extensively used to spread propaganda by proponents of violent political extremism, characterized by a worldview painted in black and white, an anti-democratic viewpoint, and intolerance towards persons with opposing ideas. We provide five arguments suggesting that philosophical dialogue with young persons would be beneficial to their acquisition of insights, attitudes and thinking tools for encountering such propaganda. (...) The arguments are based on stated requirements for problem solutions given by experts in violent political extremism, recent research about the effects of philosophical dialogue in young persons’ thinking skills, and parts of the basic theoretical framework of Philosophy for Children. Philosophical dialogues seem a promising way for young people to achieve a stronger democratic awareness and a more tenacious resistance against extremist views online. (shrink)

There is a long tradition in formal epistemology and in the psychology of reasoning to investigate indicative conditionals. In psychology, the propositional calculus was taken for granted to be the normative standard of reference. Experimental tasks, evaluation of the participants’ responses and psychological model building, were inspired by the semantics of the material conditional. Recent empirical work on indicative conditionals focuses on uncertainty. Consequently, the normative standard of reference has changed. I argue why neither logic nor standard probability theory provide (...) appropriate rationality norms for uncertain conditionals. I advocate coherence based probability logic as an appropriate framework for investigating uncertain conditionals. Detailed proofs of the probabilistic non-informativeness of a paradox of the material conditional illustrate the approach from a formal point of view. I survey selected data on human reasoning about uncertain conditionals which additionally support the plausibility of the approach from an empirical point of view. (shrink)

In this article we approach a case of intersemiotic translation as a paradigmatic example of Boden’s ‘transformational creativity’ category. To develop our argument, we consider Boden’s fundamental notion of ‘conceptual space’ as a regular pattern of semiotic action, or ‘habit’ (sensu Peirce). We exemplify with Gertrude Stein’s intersemiotic translation of Cézanne and Picasso’s proto-cubist and cubist paintings. The results of Stein’s IT transform the conceptual space of modern literature, constraining it towards new patterns of semiosis. Our association of Boden’s framework (...) to describe a cognitive creative phenomenon with a philosophically robust theory of meaning results in a cognitive semiotic account of IT. (shrink)

Intersemiotic translation (IT) was defined by Roman Jakobson (The Translation Studies Reader, Routledge, London, p. 114, 2000) as “transmutation of signs”—“an interpretation of verbal signs by means of signs of nonverbal sign systems.” Despite its theoretical relevance, and in spite of the frequency in which it is practiced, the phenomenon remains virtually unexplored in terms of conceptual modeling, especially from a semiotic perspective. Our approach is based on two premises: (i) IT is fundamentally a semiotic operation process (semiosis) and (ii) (...) IT is a deeply iconic-dependent process. We exemplify our approach by means of literature to dance IT and we explore some implications for the development of a general model of IT. (shrink)

While Classical Logic (CL) used to be the gold standard for evaluating the rationality of human reasoning, certain non-theorems of CL—like Aristotle’s and Boethius’ theses—appear intuitively rational and plausible. Connexive logics have been developed to capture the underlying intuition that conditionals whose antecedents contradict their consequents, should be false. We present results of two experiments (total n = 72), the first to investigate connexive principles and related formulae systematically. Our data suggest that connexive logics provide more plausible rationality frameworks for (...) human reasoning compared to CL. Moreover, we experimentally investigate two approaches for validating connexive principles within the framework of coherence-based probability logic (Pfeifer & Sanfilippo, 2021). Overall, we observed good agreement between our predictions and the data, but especially for Approach 2. (shrink)

We present an interdisciplinary approach to study systematic relations between logical form and attacks between claims in an argumentative framework. We propose to generalize qualitative attack principles by quantitative ones. Specifically, we use coherent conditional probabilities to evaluate the rationality of principles which govern the strength of argumentative attacks. Finally, we present an experiment which explores the psychological plausibility of selected attack principles.

Die kumulative Habilitation besteht aus einer philosophiegeschichtlichen Arbeit (G), drei vorwiegend theoretischen Arbeiten (T1–T3) und vier anwendungsorientierten Arbeiten (A1–A4).

There is wide support in logic, philosophy, and psychology for the hypothesis that the probability of the indicative conditional of natural language, P(if A then B), is the conditional probability of B given A, P(B|A). We identify a conditional which is such that P(if A then B)=P(B|A) with de Finetti's conditional event, B|A. An objection to making this identification in the past was that it appeared unclear how to form compounds and iterations of conditional events. In this paper, we illustrate (...) how to overcome this objection with a probabilistic analysis, based on coherence, of these compounds and iterations. We interpret the compounds and iterations as conditional random quantities which, given some logical dependencies, may reduce to conditional events. We show how the inference to B|A from A and B can be extended to compounds and iterations of both conditional events and biconditional events. Moreover, we determine the respective uncertainty propagation rules. Finally, we make some comments on extending our analysis to counterfactuals. (shrink)