2012
DOI: 10.1007/s10849-011-9156-7
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A Diagrammatic Calculus of Syllogisms

Abstract: A diagrammatic logical calculus for the syllogistic reasoning is introduced and discussed. We prove that a syllogism is valid if and only if it is provable in the calculus.

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Cited by 6 publications
(13 citation statements)
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“…Today the typical diagrammatic treatments of syllogistic include Venn-Euler diagrams (Venn, 1880), Carroll's triliteral diagrams (Carroll, 1887), Karnaugh maps (Karnaugh, 1953), and more recently, Pagnan's SYLL (Pagnan, 2012). In this paper I have introduced another diagrammatic treatment of syllogistic by re(dis)covering Leibniz's diagrammatic logic, which should be an interesting task historically and logically because this diagrammatic system has not been explored before in metalogical terms and because we have showed (our reconstruction of) LEIB has a sound and complete algorithm for syllogistic that provides more evidence on the thesis that diagrammatic reasoning is bona fide reasoning.…”
Section: Discussionmentioning
confidence: 99%
“…Today the typical diagrammatic treatments of syllogistic include Venn-Euler diagrams (Venn, 1880), Carroll's triliteral diagrams (Carroll, 1887), Karnaugh maps (Karnaugh, 1953), and more recently, Pagnan's SYLL (Pagnan, 2012). In this paper I have introduced another diagrammatic treatment of syllogistic by re(dis)covering Leibniz's diagrammatic logic, which should be an interesting task historically and logically because this diagrammatic system has not been explored before in metalogical terms and because we have showed (our reconstruction of) LEIB has a sound and complete algorithm for syllogistic that provides more evidence on the thesis that diagrammatic reasoning is bona fide reasoning.…”
Section: Discussionmentioning
confidence: 99%
“…They were not dealt with in [46]. In section 8, the modern 19th century De Morgan style syllogistics with complemented terms is considered, which was not in [46]. A suitable reading of it within RLL ⊥ is considered too.…”
Section: Structure Of the Papermentioning
confidence: 99%
“…In [46] the diagrammatic logical system SYLL for the traditional syllogistics is introduced. Its syntactic primitives consist of the symbols •, →, ←, as well as of countably many term-variables A, B, C, .…”
Section: Motivationmentioning
confidence: 99%
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