This paper examines the contemporary philosophical and cognitive relevance of Charles Peirce's diagrammatic logic of existential graphs (EGs), the ‘moving pictures of thought’. The first part brings to the fore some hitherto unknown details about the reception of EGs in the early 1900s that took place amidst the emergence of modern conceptions of symbolic logic. In the second part, philosophical aspects of EGs and their contributions to contemporary logical theory are pointed out, including the relationship between iconic logic and images, (...) the problem of the meaning of logical constants, the cognitive economy of iconic logic, the failure of the Frege–Russell thesis, and the failure of the Language of Thought hypothesis. (shrink)

Charles S. Peirce’s pragmatist theory of logic teaches us to take the context of utterances as an indispensable logical notion without which there is no meaning. This is not a spat against compositionality per se , since it is possible to posit extra arguments to the meaning function that composes complex meaning. However, that method would be inappropriate for a realistic notion of the meaning of assertions. To accomplish a realistic notion of meaning (as opposed e.g. to algebraic meaning), Sperber (...) and Wilson’s Relevance Theory (RT) may be applied in the spirit of Peirce’s Pragmatic Maxim (PM): the weighing of information depends on (i) the practical consequences of accommodating the chosen piece of information introduced in communication, and (ii) what will ensue in actually using that piece in further cycles of discourse. Peirce’s unpublished papers suggest a relevance-like approach to meaning. Contextual features influenced his logic of Existential Graphs (EG). Arguments are presented pro and con the view in which EGs endorse non-compositionality of meaning. (shrink)

Given John L. Austin’s Oxonian pedigree, we should expect his discussion of how “to say something is to do something” (1962, 12) to be taken up analytically. However, Austin also offers resources that have been exploited outside of traditional analytic philosophy—think of certain analytic feminist work, for example, or literary critical uses of performativity. For the most part, such work extends and inflects Austin’s notion of illocution and its related concepts of force and performativity for disciplinary-specific ends. This tendency in (...) reading Austin to focus on illocution and its related concepts is understandable. After all, Austin devotes most of his Harvard lectures, assembled in How to Do Things .. (shrink)

A variety of commentators have explored the similarities between pragmatism and Thomas Reid’s Philosophy of Common Sense. Peirce himself claims his version of pragmatism either (loosely) is, or entails, a Critical Common-sensism, a blend of what is best in Kant and Reid. In this paper I argue for a neglected aspect of the relation between Peirce and Reid, and of each to common sense: linguistics. First, I summarize Peirce’s account of what distinguishes his common-sensism from Reid’s. Second, I argue for (...) the importance of appeals to linguistic universals by Reid as both a source for identifying common sense beliefs, and a basis for justifying them. While Peirce is occasionally tempted by such appeals, overall he is critical of appeals to language, especially as most Western philosophers have been familiar with a small set of (Indo-)European languages; say, English, French, German, Greek, Italian, and Latin. This leads to the third section, which concerns Peirce’s familiarity with major nineteenth century linguists, and his contention that the ‘peculiarity’ of Western European languages has impeded the development of logic and philosophy. In particular, I look at unpublished manuscripts where Peirce summarizes his own study of non-European languages, ranging from Arabic, to Ngarrindjeri, to Xhosa. Peirce was only an amateur linguist, and also aware of the challenges of doing cross-cultural linguistics through comparative grammar; e.g., the temptation to force unfamiliar languages onto the “Procrustean Bed of Aryan grammar” (CP 2.211). Nonetheless, this study left him suspicious of any claims of linguistic universals, and supported his anti-psychologism. That is, not only should logic and philosophy not be based upon psychology (at least as a special science), they should also be independent of linguistics. However, Peirce also advances something like the so-called Sapir-Whorf hypothesis, that language determines, or at least conditions, thought. The question now becomes what is the nature of a philosophy of common sense, even a critical one, without a common language, or possibly no commonalities across languages? (shrink)