Results 81 to 90 of about 16,114 (210)

Double-Negation Elimination in Some Propositional Logics

open access: yes, 2002
This article answers two questions (posed in the literature), each concerning the guaranteed existence of proofs free of double negation. A proof is free of double negation if none of its deduced steps contains a term of the form n(n(t)) for some term t,
Beeson, Michael   +2 more
core   +1 more source

One philosopher's modus ponens is another's modus tollens: Pantomemes and nisowir

open access: yesMetaphilosophy, 2022
That one person's modus ponens is another's modus tollens is the bane of philosophy because it strips many philosophical arguments of their persuasive force. The problem is that philosophical arguments become mere pantomemes: arguments that are reasonable to resist simply by denying the conclusion.
openaire   +2 more sources

A Structural Characterization of Extended Correctness-Completeness in Classical Logic

open access: yesCrítica, 2019
In this paper I deal with first order logic and axiomatic systems. I present the metalogical results that show the property of satisfying Modus Ponens as a necessary and sufficient condition for the extended completeness of the system, and to the ...
José Alfredo Amor
doaj   +1 more source

Dificuldades com inferências inválidas entre adultos: tentativa de superação

open access: yesPsicologia: Reflexão e Crítica, 2000
Estudos entre crianças e adultos demonstram que problemas silogísticos válidos (Modus Ponens e Modus Tollens) são de fácil solução, ao contrário daqueles que envolvem formas inválidas (Afirmação do Conseqüente e Negação do Antecedente), nos quais o ...
Dias Maria da Graça Bompastor Borges
doaj  

Buddhist Philosophy of Logic [PDF]

open access: yes, 2013
Logic in Buddhist Philosophy concerns the systematic study of anumāna (often translated as inference) as developed by Dignāga (480-540 c.e.) and Dharmakīti (600-660 c.e.). Buddhist logicians think of inference as an instrument of knowledge (pramāṇa) and,
Tanaka, Koji
core  

COMPLEX CHARACTER OF LOGIC IN LEGAL METHODOLOGY

open access: yesВісник НЮУ імені Ярослава Мудрого: Серія: Філософія, філософія права, політологія, соціологія, 2019
Problem setting. In the modern methodology, the issues related to the impossibility of fulfilling the general scientific logical requirements of completeness and consistency are actualized: "whitish spots" testify to the inability to achieve the ideal of
Олена Миколаївна Юркевич
doaj   +1 more source

Sequential effects in deduction: Cost of inference switch

open access: yesPsicológica, 2010
El paradigma de cambio de tarea ha ayudado a los psicólogos a conocer los procesos involucrados en el cambio de una actividad a otra. La literatura aporta resultados consistentes sobre la reconfiguración necesaria para el cambio de tarea (desaparición ...
Antonio González-Hernández   +4 more
doaj  

The Triviality Result is not Counter-Intuitive [PDF]

open access: yes
The Equation (TE) states that the probability of A → B is the probability of B given A. Lewis (1976) has shown that the acceptance of TE implies that the probability of A → B is the probability of B, which is implausible: the probability of a conditional
Silva, Matheus
core  

Cut-off points for the rational believer [PDF]

open access: yes
I show that the Lottery Paradox is just a version of the Sorites, and argue that this should modify our way of looking at the Paradox itself. In particular, I focus on what I call “the Cut-off Point Problem” and contend that this problem, well known by ...
Lissia, Lina Maria
core  

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