Update

You are looking at 1-20 of 293 entries  for:

  • All: denying the consequent x
clear all

View:

Overview

denying the consequent

In conditional reasoning, arguing validly from a hypothetical proposition of the form If p then q that, because q is false, therefore p is false. For example, given the proposition If the ...

denying the consequent

denying the consequent   Reference library

Colwyn Williamson

The Oxford Companion to Philosophy (2 ed.)

Reference type:
Subject Reference
Current Version:
2005
Subject:
Philosophy
Length:
103 words

... the consequent . In a hypothetical proposition ‘If p , then q ’, p is the antecedent, q the consequent. Asserting that q is false, so that the falsity of p may be inferred, is denying the consequent; the inference is in the modus tollens . When a man who is patently not Dutch says ‘If the Queen cannot afford to pay taxes, I'm a Dutchman’, he means us to deny the consequent and conclude that the Queen is patently wealthy. The corresponding fallacy is denying the antecedent. Mr Colwyn Williamson H. W. B. Joseph , An Introduction to Logic , 2nd...

denying the consequent

denying the consequent   Quick reference

The Oxford Dictionary of Philosophy (3 ed.)

Reference type:
Subject Reference
Current Version:
2016
Subject:
Philosophy
Length:
38 words

... the consequent To argue validly that, given that if p then q and given not- q , we can infer not- p . ‘If the leg is broken this will hurt; it does not hurt, so the leg is not...

denying the consequent

denying the consequent n.   Quick reference

A Dictionary of Psychology (4 ed.)

Reference type:
Subject Reference
Current Version:
2015

... the consequent n. In conditional reasoning , arguing validly from a hypothetical proposition of the form If p then q that, because q is false, therefore p is false. For example, given the proposition If the burglars entered by the front door, then they forced the lock , it is valid to deduce from the fact that the burglars did not force the lock that they did not enter by the front door. Also called modus tollens . Compare affirming the antecedent , affirming the consequent , denying the antecedent...

denying the consequent

denying the consequent  

In conditional reasoning, arguing validly from a hypothetical proposition of the form If p then q that, because q is false, therefore p is false. For example, given the proposition If the burglars ...
Women

Women   Reference library

An Oxford Companion to the Romantic Age

Reference type:
Subject Reference
Current Version:
2009
Subject:
History, modern history (1700 to 1945), Literature
Length:
5,844 words
Publisher:
Oxford University Press

...by the group that Mill regarded as the most wise and virtuous part of the community: the middle rank. Thompson, whose ideas had been influenced by his friendship with the Irish *Saint-Simonian feminist Anna *Wheeler , saw the denial to women of citizenship and political rights as being directly connected with their abject sexual and domestic slavery. He argued that all women were in need of political rights, most particularly married women. ‘Having been reduced, by the want of political rights, to a state of helplessness, slavery, and of consequent...

Exploration

Exploration   Reference library

An Oxford Companion to the Romantic Age

Reference type:
Subject Reference
Current Version:
2009
Subject:
History, modern history (1700 to 1945), Literature
Length:
4,825 words
Publisher:
Oxford University Press

...theories ]. Although the four stages were defined on the basis of modes of production, writers such as Ferguson and Millar were not primarily interested in technology nor in the social relations engendered by particular forms of labour, but rather in the degree to which property was institutionalized and in the moral conditions that emerged from various nomadic and settled ways of life. The ‘rudeness’ of hunters was regarded as the effect of their rootless existence. The use of the plough in agriculture, and the consequent emergence of property rights...

Novels

Novels   Reference library

An Oxford Companion to the Romantic Age

Reference type:
Subject Reference
Current Version:
2009
Subject:
History, modern history (1700 to 1945), Literature
Length:
6,137 words
Publisher:
Oxford University Press

...motif, denied in this opening chapter and in the novel as a whole (which sets Edward Waverley as a variant of Quixote, encountering the reality behind the Romantic illusion of Jacobite Scotland), was in practice a key factor in Scott's appeal. The Waverley novels most easily rescued from the trough of Scott's twentieth-century reputation were those grounded in Scottish history and featuring a range of Scottish peasant characters generally agreed to steal the show from their nominal heroes: these novels include Old Mortality ( 1816 ), The Heart of...

Sensibility

Sensibility   Reference library

An Oxford Companion to the Romantic Age

Reference type:
Subject Reference
Current Version:
2009
Subject:
History, modern history (1700 to 1945), Literature
Length:
7,039 words
Publisher:
Oxford University Press

...manners’. Hume specified how the creation of cities, with consequent increase in human contact, organization, knowledge, and pleasure, produced ‘an increase of humanity’, that is, humanitarianism. He argued that the more men refined their pleasures, the less susceptible they were to indulge themselves in ‘beastly gluttony’ and ‘drunkenness’, though not necessarily in ‘libertine love’. He attributed to women ‘a more delicate taste in the ornaments of life’ and ‘the ordinary decencies of behaviour’, and he suggested that it was the easier and ‘sociable’...

conditional reasoning

conditional reasoning  

A form of logical reasoning based on conditional statements or conditional propositions having the form If p, then q, in which p is the antecedent and q is the consequent. An example is If this ...
affirming the consequent

affirming the consequent  

In conditional reasoning, arguing invalidly from a hypothetical proposition of the form If p then q that, because q therefore p. For example, given the proposition If the burglars entered by the ...
denying the antecedent

denying the antecedent  

In conditional reasoning, arguing invalidly from a hypothetical proposition of the form If p then q that, because p is false, therefore q is false. For example, given the proposition If the burglars ...
affirming the antecedent

affirming the antecedent  

In conditional reasoning, arguing validly from a hypothetical proposition of the form If p then q that, because p therefore q. For example, given the proposition If the burglars entered by the front ...
modus tollens

modus tollens  

Any argument taking the form: If p, then q; Not-q; Therefore not-p. For example, If it is Sunday, then the restaurant is closed; The restaurant is not closed; Therefore, it is not Sunday. Such an ...
modus tollens

modus tollens n.   Quick reference

A Dictionary of Psychology (4 ed.)

Reference type:
Subject Reference
Current Version:
2015

...tollens n. Any argument taking the form: If p, then q; Not-q; Therefore not-p . For example, If it is Sunday, then the restaurant is closed; The restaurant is not closed; Therefore, it is not Sunday . Such an argument is logically valid. See also denying the consequent . Compare modus ponens . [Latin: mood that denies...

affirming the consequent

affirming the consequent n.   Quick reference

A Dictionary of Psychology (4 ed.)

Reference type:
Subject Reference
Current Version:
2015

...the consequent n. In conditional reasoning , arguing invalidly from a hypothetical proposition of the form If p then q that, because q therefore p . For example, given the proposition If the burglars entered by the front door, then they forced the lock , it is invalid to conclude from the fact that the burglars forced the lock that they must have entered by the front door. Compare affirming the antecedent , denying the antecedent , denying the consequent...

affirming the antecedent

affirming the antecedent n.   Quick reference

A Dictionary of Psychology (4 ed.)

Reference type:
Subject Reference
Current Version:
2015

...the antecedent n. In conditional reasoning , arguing validly from a hypothetical proposition of the form If p then q that, because p therefore q . For example, given the proposition If the burglars entered by the front door, then they forced the lock , it is valid to deduce from the fact that the burglars entered by the front door that they must have forced the lock. Also called modus ponens . Compare affirming the consequent , denying the antecedent , denying the consequent...

denying the antecedent

denying the antecedent n.   Quick reference

A Dictionary of Psychology (4 ed.)

Reference type:
Subject Reference
Current Version:
2015

... the antecedent n. In conditional reasoning , arguing invalidly from a hypothetical proposition of the form If p then q that, because p is false, therefore q is false. For example, given the proposition If the burglars entered by the front door, then they forced the lock , it is invalid to deduce from the fact that the burglars did not enter by the front door that they did not force the lock. Compare affirming the antecedent , affirming the consequent , denying the consequent...

conditional reasoning

conditional reasoning n.   Quick reference

A Dictionary of Psychology (4 ed.)

Reference type:
Subject Reference
Current Version:
2015

...then many people would drown . A counterfactual conditional is a subjunctive conditional in which the antecedent is not merely hypothetical but false: If she had pulled the trigger, then I would have been killed ; and in logic it is necessarily true because its antecedent is false. See also affirming the antecedent , affirming the consequent , biconditional , denying the antecedent , denying the consequent , simulation heuristic...

denying the antecedent

denying the antecedent   Reference library

Colwyn Williamson

The Oxford Companion to Philosophy (2 ed.)

Reference type:
Subject Reference
Current Version:
2005
Subject:
Philosophy
Length:
90 words

... the antecedent . To reason that, because Nazis hate Jews and John is not a Nazi, he cannot be an anti-Semite, is to commit this fallacy. In the traditional logic of terms, inferences like ‘If A is B , it is C ; it is not A ; therefore it is not C ’ illustrate the fallacy. In propositional calculus , any inference of the form ‘If p then q , and not p ; therefore not q ’ denies the antecedent. Mr Colwyn Williamson See also denying the consequent . C. L. Hamblin , Fallacies (London,...

modus tollens

modus tollens   Reference library

Colwyn Williamson

The Oxford Companion to Philosophy (2 ed.)

Reference type:
Subject Reference
Current Version:
2005
Subject:
Philosophy
Length:
98 words

...tollens . Thedenying mode’. In propositional calculus , any inference of the form ‘If p then q , and not q ; therefore not p ’ is an instance of modus tollens . In the traditional logic of terms, inferences like ‘If A is B , it is C ; A is not C ; therefore A is not B ’ were said to be in the modus tollens . Like modus ponens inferences, not really syllogisms at all. These inferences too were often called ‘hypothetical syllogisms’. Mr Colwyn Williamson See also denying the consequent . J. N. Keynes , Formal Logic , 4th edn....

View: