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Preprints, Working Papers, ... Year : 2022

Mathematical Hygiene


This paper aims to bring together the study of purity of methods in the philosophy of mathematics and verbal hygiene in sociolinguistics. Impurity is the normative idea that mathematical knowledge (instantiated as theorems) can be arrived at through a wide range of methods belonging to different domains of mathematics; whereas purity is the idea that proofs should "draw only on what is "close" or "intrinsic" to what is proved" Detlefsen and Arana (2011). Verbal hygiene (Cameron 1995) refers to the set of normative ideas that language users have about which linguistic practices should be preferred, and the ways in which they go about encouraging or enforcing others to adopt their preference. We introduce the notion of mathematical hygiene, which we define in a parallel way as the set of normative discourses regulating mathematical practices and the ways in which mathematicians promote those practices. To clarify our proposal, we present two case studies from 17th century France. First, we exemplify a case of mathematical hygiene proper: Descartes' algebraic geometry and Newton's subsequent criticism of it. Then, we compare Descartes' mathematical hygiene with verbal hygiene from this period, as exemplified by the work of the grammarian Claude Favre de Vaugelas (Ayres-Bennet 1987). We argue that both Descartes' and Vaugelas' normative discourses on mathematics and language respectively can be seen as emanating from a common socio-political project: the development of a new bourgeois intellectual class. We conclude that the study of mathematical hygiene has the potential to yield new understandings of the social aspects of mathematical practice, and that similarities between mathematical and verbal hygiene at certain time periods, such as 17th century France, open up a new area of inquiry at the borders of linguistics and the philosophy of mathematics.
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Dates and versions

hal-03723559 , version 1 (15-07-2022)
hal-03723559 , version 2 (22-07-2022)


  • HAL Id : hal-03723559 , version 2


Andrew Arana, Heather Burnett. Mathematical Hygiene. 2022. ⟨hal-03723559v2⟩
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