Traditionally, the investigation of truth has been anchored in a priori reasoning. Cognitive science deviates from this tradition by adding empirical data on how people understand and use concepts. Building on psychophysics and machine learning methods, we introduce conceptual scaling, an approach to map people's understanding of abstract concepts. This approach, allows computing participant-specific conceptual maps from obtained ordinal comparison data, thereby quantifying perceived similarities among abstract concepts. Using this approach, we investigated individual's alignment with philosophical theories on truth and (...) the predictive capacity of conceptual maps. The obtained results indicated that, while people's understanding of truth is multifaceted and encapsulates notions of coherence and authenticity, alignment is best for the correspondence theory of truth. Furthermore, conceptual maps allowed predicting individual outcomes with an accuracy of roughly 70%. This research demonstrates that conceptual scaling offers accurate descriptions of individual's understanding of abstract concepts, behavioral predictions, and quantification of alignment with theoretical perspectives. (shrink)

The truth-justification is an enduring explanation for valuing free speech. This paper seeks to advance an account of “assertion”, found in speech act theory, that can identify speech which contributes to truth-discovery in a nuanced way. I apply the dialectic theory of assertion which emphasises the language game of giving and asking for reasons to believe things as assertional social practice. In doing so, I consider what “moves” in this game make sense from a truth-discovery perspective, drawing together contemporary and (...) foundational work on assertion in linguistics to fit the normative context of law. Speech act theory is often invoked in current free speech literature to identify regulable speech, but less typically to identify speech that warrants legal protection. I contextualise my theory within this existing legal work and show how the model I advocate for applies across many formulations of the truth-justification to offer comprehensive explanatory and justificatory power. I also explore the potential appeal of alternative theories of assertion and explain why they are a poor fit in comparison to the dialectical account. (shrink)

Most philosophers have largely downplayed any relevance of multiple meanings of the folk concept of truth in the empirical domain. However, confusions about what truth is have surged in political and everyday discourse. In order to resolve these confusions, we argue that we need a more accurate picture of how the term ‘true’ is in fact used. Our experimental studies reveal that the use of ‘true’ shows substantial variance within the empirical domain, indicating that ‘true’ is ambiguous between a correspondence (...) and a coherence reading. We then explore the consequences of these results for the project of re-engineering truth. (shrink)

The topic of truth has long been thought to be connected to scientific realism and its opposition. In this essay, I discuss the various ways that truth might be related to realism. First, I consider how truth might be of use when defining scientific realism and its opposition. Second, I consider whether various stances regarding realism require specific stances on the nature of truth. I survey "neutralist" views that argue that one's stance on realism is independent of one's view on (...) truth, and partisan positions that claim that one's attitude on realism is, in part, determined by one's theory of truth. Though partisan views have been popular, and defended by seminal figures such as Thomas Kuhn, Richard Rorty, Hilary Putnam, and Arthur Fine, I raise a number of objections for them. (shrink)

Here, I take alethic views of understanding to be all views that hold that whether an explanation is true or false matters for whether that explanation provides understanding. I then argue that there is (as yet) no naturalistic defence of alethic views of understanding in cognitive science, because there is no agreement about the correct descriptions of the content of cognitive scientific explanations. I use this claim to argue for the provisional acceptance of afactivism in cognitive science, which is the (...) view that the truth or falsity of an explanation of cognition is irrelevant to whether that explanation provides understanding. I conclude by discussing the relation between understanding in cognitive science and understanding in other domains. (shrink)

It is easy to fall for a conceptual beauty and simplicity of the coherence theory of truth. But the texts in which its foundations were for the first time explicitly developed are rich in subtleties, defying a consistent interpretation and inviting various forms of criticism. That is why the following study will take one more look at the writings of Harold H. Joachim and Brand Blanshard, in order to prove that in the analyses which they proposed there is an additional, (...) so far unrecognised element – namely the process of translation – which plays a crucial role in making their accounts valid and complete. Initially then, the article will specify how the notion of translation should be here understood. Next, key postulates of both theories will be recalled, with an indication of several potential inconsistencies which they might entail. Finally, the analysis exposes translative ground of each reconstructed model. What will be thereby underscored, is not only the interpretative depth of Joachim’s and Blanshard’s legacy, but also significance of translation for the philosophical enquiry into the nature of truth. (shrink)

It is commonly thought that authors can make anything whatsoever true in their fictions by artistic fiat. Harry Deutsch originally called this position the Principle of Poetic License. If true, PPL sets an important constraint on accounts of fictional truth: they must be such as to allow that, for any x, one can write a story in which it is true that x. I argue that PPL is far too strong: it requires us to abandon the law of non-contradiction and (...) entails a radical revision of otherwise ordinary commitments about truth in fiction. (shrink)