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Single Idea 18896

[filed under theme 5. Theory of Logic / E. Structures of Logic / 1. Logical Form ]

Full Idea

Aristotle often preferred to formulate predications by placing the terms at opposite ends of the sentence and joining them by predicating expressions like 'belongs-to-some' or 'belongs-to-every'.

Gist of Idea

Aristotle places terms at opposite ends, joined by a quantified copula

Source

report of Aristotle (Prior Analytics [c.328 BCE]) by Fred Sommers - Intellectual Autobiography 'Conceptions'

Book Ref

'The Old New Logic', ed/tr. Oderberg,David S. [MIT 2005], p.10


A Reaction

This is Sommers's picture of Aristotle, which led Sommers to develop his modern Term Logic.

Related Ideas

Idea 4730 For Aristotle, the subject-predicate structure of Greek reflected a substance-accident structure of reality [Aristotle, by O'Grady]

Idea 18903 Sommers promotes the old idea that negation basically refers to terms [Sommers, by Engelbretsen]


The 15 ideas from 'Prior Analytics'

Aristotle's said some Fs are G or some Fs are not G, forgetting that there might be no Fs [Bostock on Aristotle]
Aristotle was the first to use schematic letters in logic [Aristotle, by Potter]
Aristotelian syllogisms are three-part, subject-predicate, existentially committed, with laws of thought [Aristotle, by Hanna]
Aristotelian sentences are made up by one of four 'formative' connectors [Aristotle, by Engelbretsen]
Aristotelian identified 256 possible syllogisms, saying that 19 are valid [Aristotle, by Devlin]
Aristotle replaced Plato's noun-verb form with unions of pairs of terms by one of four 'copulae' [Aristotle, by Engelbretsen/Sayward]
Aristotle places terms at opposite ends, joined by a quantified copula [Aristotle, by Sommers]
Aristotle's logic is based on the subject/predicate distinction, which leads him to substances and properties [Aristotle, by Benardete,JA]
Aristotelian logic has two quantifiers of the subject ('all' and 'some') [Aristotle, by Devlin]
Linguistic terms form a hierarchy, with higher terms predicable of increasing numbers of things [Aristotle, by Engelbretsen]
Affirming/denying sentences are universal, particular, or indeterminate [Aristotle]
Deduction is when we suppose one thing, and another necessarily follows [Aristotle]
There are three different deductions for actual terms, necessary terms and possible terms [Aristotle]
A deduction is necessary if the major (but not the minor) premise is also necessary [Aristotle]
Aristotle listed nineteen valid syllogisms (though a few of them were wrong) [Aristotle, by Devlin]