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Truth-operations

Michael Potter

in Wittgenstein's Notes on Logic

Published in print:
2008
Published Online:
January 2009
ISBN:
9780199215836
eISBN:
9780191721243
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780199215836.003.0018
Subject:
Philosophy, Logic/Philosophy of Mathematics

From a single proposition p we form its negation not-p. From two propositions p and q we form various further propositions, e.g., p or q, p and q, etc.; similarly (though less often) with three or ... More


The General Form of the Proposition

Denis McManus

in The Enchantment of Words: Wittgenstein's “Tractatus Logico-Philosophicus”

Published in print:
2006
Published Online:
January 2007
ISBN:
9780199288021
eISBN:
9780191713446
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780199288021.003.0011
Subject:
Philosophy, History of Philosophy

This chapter explores Wittgenstein’s remarks on ‘the general form of the proposition’ and argues that these too are informed by his desire to show that the impression that there are substantial ... More


Functions, Operations, and Sense in Wittgenstein's Tractatus

Peter Hylton

in Propositions, Functions, and Analysis: Selected Essays on Russell's Philosophy

Published in print:
2005
Published Online:
May 2010
ISBN:
9780199286355
eISBN:
9780191713309
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780199286355.003.0009
Subject:
Philosophy, History of Philosophy, Logic/Philosophy of Mathematics

This chapter takes up an important and disputed issue in the interpretation of Wittgenstein's Tractatus Logico-Philosophicus, and uses ideas articulated in the previous chapter to shed light on it. ... More


Wittgenstein Against Frege and Russell

Thomas Ricketts

in From Frege to Wittgenstein: Perspectives on Early Analytic Philosophy

Published in print:
2002
Published Online:
November 2003
ISBN:
9780195133264
eISBN:
9780199833580
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/0195133269.003.0010
Subject:
Philosophy, History of Philosophy

The paper examines Wittgenstein's criticisms of Frege's and Russell's views of logical segmentation encapsulated at Tractatus 4.431 and 4.063. These criticisms proceed from Wittgenstein's 1913 ... More


Resolving the paradoxes

Michael Potter

in Wittgenstein's Notes on Logic

Published in print:
2008
Published Online:
January 2009
ISBN:
9780199215836
eISBN:
9780191721243
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780199215836.003.0021
Subject:
Philosophy, Logic/Philosophy of Mathematics

The discussion of Wittgenstein's account of quantification in Chapter 20 left unaddressed what sort of theory of types it commits us to. To answer this question we need to look in more detail at the ... More


Logicism without Classes

Mathieu Marion

in Wittgenstein, Finitism, and the Foundations of Mathematics

Published in print:
2008
Published Online:
September 2011
ISBN:
9780199550470
eISBN:
9780191701559
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780199550470.003.0002
Subject:
Philosophy, History of Philosophy, Logic/Philosophy of Mathematics

The notion of operation plays a pivotal role in the symbolism of the Tractatus Logico-Philosophicus: on the one hand, truth-functions are based on truth-operations; on the other, numbers are ... More


The End of Representation?

Stephen Neale

in Facing Facts

Published in print:
2001
Published Online:
November 2003
ISBN:
9780199247158
eISBN:
9780191598081
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/0199247153.003.0001
Subject:
Philosophy, Philosophy of Language

Introduces the criticisms put forward by philosophers such as Donald Davidson and Richard Rorty to the idea that one thing might represent another: that thoughts, utterances, and inscriptions are ... More


‘If’ and ‘⊃ ’

P. F. Strawson

in Entity and Identity: And other essays

Published in print:
2000
Published Online:
November 2003
ISBN:
9780198250159
eISBN:
9780191598470
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/0198250150.003.0010
Subject:
Philosophy, Metaphysics/Epistemology

The view that the ordinary conditional ‘if p then q’ has the same meaning as the material conditional of standard truth‐functional logic confronts the more intuitive view that it imports, as part of ... More


Logic and Analysis

José L. Zalabardo

in Representation and Reality in Wittgenstein's Tractatus

Published in print:
2015
Published Online:
August 2015
ISBN:
9780198743941
eISBN:
9780191803949
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780198743941.003.0007
Subject:
Philosophy, History of Philosophy, Metaphysics/Epistemology

This chapter argues that Wittgenstein’s account of how we know that a proposition is a logical consequence of other propositions provides the main motivation for his flagship doctrine that every ... More


Logic and Conditional Reasoning

Raymond S. Nickerson

in Conditional Reasoning: The Unruly Syntactics, Semantics, Thematics, and Pragmatics of "If"

Published in print:
2015
Published Online:
November 2015
ISBN:
9780190202996
eISBN:
9780190249137
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780190202996.003.0004
Subject:
Psychology, Cognitive Psychology

This chapter discusses truth functions and the concept of the material conditional. It introduces the criteria of assertability or acceptability; notes alogical aspects of conditionals as they are ... More


Representation and Reality in Wittgenstein's Tractatus

José L. Zalabardo

Published in print:
2015
Published Online:
August 2015
ISBN:
9780198743941
eISBN:
9780191803949
Item type:
book
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780198743941.001.0001
Subject:
Philosophy, History of Philosophy, Metaphysics/Epistemology

The book puts forward an interpretation of some central ideas of Wittgenstein’s Tractatus Logico-Philosophicus concerning the structure of reality and our representations of it in thought and ... More


Early Metaphysics and Logic (Leipzig, 1839–1844)

Frederick C. Beiser

in Late German Idealism: Trendelenburg and Lotze

Published in print:
2013
Published Online:
January 2014
ISBN:
9780199682959
eISBN:
9780191763090
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780199682959.003.0011
Subject:
Philosophy, History of Philosophy

Chapter 3 is a discussion of Lotze’s early metaphysics and logic. One section is devoted to Lotze’s 1841 Metaphysik, an innovative text in the criticism of the metaphysical tradition and Hegelianism. ... More


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