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The Logical Textbooks and Topical Reasoning: Types of Argument

John Marenbon

in Boethius

Published in print:
2003
Published Online:
November 2003
ISBN:
9780195134070
eISBN:
9780199868094
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/0195134079.003.0004
Subject:
Religion, Philosophy of Religion

Discusses Boethius's logical monographs: his treatises on division, on categorical syllogisms, and most importantly, his works on the theory of topical argument and on hypothetical syllogisms. The ... More


Syllogistic Tense Logic

Alexander Broadie

in Introduction to Medieval Logic

Published in print:
1993
Published Online:
October 2011
ISBN:
9780198240266
eISBN:
9780191680137
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780198240266.003.0008
Subject:
Philosophy, Logic/Philosophy of Mathematics, History of Philosophy

The term ‘syllogism’ was used in a wide sense to signify any piece of reasoning, theoretical or practical. Within the area of theoretical reasoning, a distinction was drawn between categorical and ... More


The Disjunctive Syllogism and Quasi-Validity

Graham Priest

in In Contradiction

Published in print:
2006
Published Online:
May 2007
ISBN:
9780199263301
eISBN:
9780191718823
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780199263301.003.0009
Subject:
Philosophy, Logic/Philosophy of Mathematics

In this chapter the disjunctive syllogism is discussed. This is not valid in the semantics of the previous chapters. It is argued that the form of inference may be used in consistent situations, ... More


Galen, Christians, logic

Jonathan Barnes

in Classics in Progress: Essays on Ancient Greece and Rome

Published in print:
2006
Published Online:
January 2012
ISBN:
9780197263235
eISBN:
9780191734328
Item type:
chapter
Publisher:
British Academy
DOI:
10.5871/bacad/9780197263235.003.0016
Subject:
Classical Studies, Literary Studies: Classical, Early, and Medieval

The three subjects — Galen, Christians, and logic — have two things in common. First, they are major aspects of the ancient world: Galen was one of the three most influential scientists of antiquity ... More


The Conscience as a Syllogism

Ceri Sullivan

in The Rhetoric of the Conscience in Donne, Herbert, and Vaughan

Published in print:
2008
Published Online:
September 2008
ISBN:
9780199547845
eISBN:
9780191720901
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780199547845.003.0002
Subject:
Literature, 17th-century and Restoration Literature

Meg Lota Brown and Camille Slights have considered how metaphysical poetry relates to that form of Stuart ethical discussion known as case casuistry, where individual situations are considered in ... More


Beware of Syllogism: Statistical Reasoning and Conjecturing According to Peirce

Isaac Levi

in Pragmatism and Inquiry: Selected Essays

Published in print:
2012
Published Online:
January 2013
ISBN:
9780199698134
eISBN:
9780191742323
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780199698134.003.0005
Subject:
Philosophy, Metaphysics/Epistemology, History of Philosophy

In 1865 and 1866, Peirce appealed to Aristotle’s proposal that an inductive inference be understood as a transformation of a categorical syllogism by permuting the major premise and the conclusion ... More


Acting on Maxims

Richard McCarty

in Kant's Theory of Action

Published in print:
2009
Published Online:
September 2009
ISBN:
9780199567720
eISBN:
9780191721465
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780199567720.003.0001
Subject:
Philosophy, Philosophy of Mind, History of Philosophy

Maxims are traditionally understood as major premises of the practical syllogism, or of practical reasoning. In maxims, objects to be brought about by action are represented as “good”. As rationalist ... More


Relevance in Reasoning

Neil Tennant

in The Oxford Handbook of Philosophy of Mathematics and Logic

Published in print:
2005
Published Online:
July 2005
ISBN:
9780195148770
eISBN:
9780199835560
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/0195148770.003.0023
Subject:
Philosophy, Logic/Philosophy of Mathematics

This chapter explains an approach to relevantization of logical reasoning that seeks to maximize epistemic gain. It does so by retaining Disjunctive Syllogism and making admissible only a restricted ... More


On the Legal Syllogism

NEIL MacCORMICK

in Rhetoric and The Rule of Law: A Theory of Legal Reasoning

Published in print:
2005
Published Online:
January 2010
ISBN:
9780199571246
eISBN:
9780191713064
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780199571246.003.0003
Subject:
Law, Philosophy of Law

Chapter 2 depicted legal rules as taking the form of ‘Whenever OF then NC’. Given this depiction, one would think that law application must be an intellectually simple procedure. All one has to do in ... More


Apocalyptic Changes: The Origins of Alsted's Millenarianism, 1619–27

Howard Hotson

in Johann Heinrich Alsted 1588–1638: Between Renaissance, Reformation, and Universal Reform

Published in print:
2000
Published Online:
October 2011
ISBN:
9780198208280
eISBN:
9780191677960
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780198208280.003.0006
Subject:
History, European Early Modern History

The Diatribe de mille annis apocalypticis, like the Encyclopaedia, presents Johann Heinrich Alsted's thought in its most sober and respectable guise. This little book — the first and most influential ... More


Rhetoric and The Rule of Law: A Theory of Legal Reasoning

Neil MacCormick

Published in print:
2005
Published Online:
January 2010
ISBN:
9780199571246
eISBN:
9780191713064
Item type:
book
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780199571246.001.0001
Subject:
Law, Philosophy of Law

When cases come before courts can we predict the outcome? Is legal reasoning rationally persuasive, working within a formal structure and using recognisable forms of arguments to produce predictable ... More


Singular and Existential Propositions

A. N. Prior

in Formal Logic

Published in print:
1963
Published Online:
October 2011
ISBN:
9780198241560
eISBN:
9780191680373
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780198241560.003.0007
Subject:
Philosophy, Logic/Philosophy of Mathematics

In the last chapter of the Prior Analytics, Aristotle gave examples of inferences, including a syllogism, using singular propositions. However, the Schoolmen were much more at home with them and used ... More


Logic

Henry Chadwick

in Boethius: The Consolations of Music, Logic, Theology, and Philosophy

Published in print:
1990
Published Online:
October 2011
ISBN:
9780198265498
eISBN:
9780191682896
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780198265498.003.0003
Subject:
Religion, Early Christian Studies, Philosophy of Religion

The tripartite division (Physics, Metaphysics, and Ethics) of theoretical philosophy is commonplace, very frequently repeated by Boethius's Neoplatonic masters. In Boethius, it receives its most ... More


Stoic Disjunction

R. E. Jennings

in The Genealogy of Disjunction

Published in print:
1995
Published Online:
September 2011
ISBN:
9780195075243
eISBN:
9780199852970
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780195075243.003.0010
Subject:
Philosophy, Philosophy of Language

This chapter examimes relevance to misunderstandings about the meaning of aut and possible meanings of ‘or’. In spite of what has been said about the notion of form, there is no harm in applying the ... More


Forms of Argument

Jonathan Barnes

in Truth, etc.: Six Lectures on Ancient Logic

Published in print:
2009
Published Online:
October 2011
ISBN:
9780199568178
eISBN:
9780191702037
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780199568178.003.0004
Subject:
Philosophy, Ancient Philosophy, Logic/Philosophy of Mathematics

Logic, in the good old days, was the art of thinking — more precisely, it was the art or science of reasoning. Logicians were supposed to consider arguments — deductions, inferences, syllogisms, what ... More


The Science of Logic

Jonathan Barnes

in Truth, etc.: Six Lectures on Ancient Logic

Published in print:
2009
Published Online:
October 2011
ISBN:
9780199568178
eISBN:
9780191702037
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780199568178.003.0005
Subject:
Philosophy, Ancient Philosophy, Logic/Philosophy of Mathematics

In his Elements, Euclid first sets down certain primary truths or axioms and then deduces from them a number of secondary truths or theorems. Before ever Euclid wrote, Aristotle had described and ... More


When is a Syllogism not a Syllogism?

Jonathan Barnes

in Truth, etc.: Six Lectures on Ancient Logic

Published in print:
2009
Published Online:
October 2011
ISBN:
9780199568178
eISBN:
9780191702037
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780199568178.003.0006
Subject:
Philosophy, Ancient Philosophy, Logic/Philosophy of Mathematics

The piece discussed in this chapter is the twentieth of the twenty-one items which Plotinus had written before Porphyry joined his circle in 263. It generally circulated under the title ‘On ... More


Note on the Practical Syllogism

W.F.R. Hardie

in Aristotle's Ethical Theory

Published in print:
1980
Published Online:
October 2011
ISBN:
9780198246329
eISBN:
9780191680953
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780198246329.003.0012
Subject:
Philosophy, Ancient Philosophy, Moral Philosophy

The expression ‘practical syllogism’ is used by commentators on Aristotle as a name for a process in which a rule is applied to a concrete situation, the application consisting in the thinker's doing ... More


General Objections

JC Beall

in Logical Pluralism

Published in print:
2005
Published Online:
October 2011
ISBN:
9780199288403
eISBN:
9780191700491
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780199288403.003.0008
Subject:
Philosophy, Logic/Philosophy of Mathematics

By way of further clarifying logical pluralism, this chapter turns to some general objections. One objection is to argue for a pluralism about logical consequence which is wide enough to encompass ... More


Chapter 3

Wael B. Hallaq

in Ibn Taymiyya Against the Greek Logicians

Published in print:
1993
Published Online:
October 2011
ISBN:
9780198240433
eISBN:
9780191680175
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780198240433.003.0003
Subject:
Philosophy, History of Philosophy, Logic/Philosophy of Mathematics

The third point asserted in this chapter has to do with the doctrine that no judgement may be known except by means of syllogism, whose form and content has been stipulated. This is seen to be a ... More


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