منابع مشابه
There is No Paradox of Logical Validity
A number of arguments, including (Whittle 2004), (Field 2008), (Shapiro 2012), and (Beall & Murzi 2012), have been put forward for the claim that logical validity is plagued by a paradox (or paradoxes) similar to the more well-known paradoxes that afflict notions such as truth, knowledge, or set. These claims are incorrect. As I will show here, there is no paradox of logical validity. In additi...
متن کاملLogical Rules, Principles of Reasoning and Russell's Paradox
he records that prr ↔ ~prr (I informally drop superscripts from predicates). Therefrom, by classical logic (CL), he derives both prr and ~prr. Finally, by the Ex Contradictione Quodlibet (ECQ) rule of CL he concludes that Mary is in Smallville. He then looks for Mary all over there. Tiny as this village is, he still wastes several hours in an unsuccessful search, for Mary happened to be on a tr...
متن کاملTwin Paradox and the Logical Foundation of Relativity Theory
We study the foundation of space-time theory in the framework of first-order logic (FOL). Since the foundation of mathematics has been successfully carried through (via set theory) in FOL, it is not entirely impossible to do the same for space-time theory (or relativity). First we recall a simple and streamlined FOL-axiomatization Specrel of special relativity from the literature. Specrel is co...
متن کاملThe Doctrinal Paradox , the Discursive Dilemma , and Logical Aggregation
Judgment aggregation theory, or rather, as we conceive of it here, logical aggregation theory generalizes social choice theory by having the aggregation rule bear on judgments of all kinds instead of merely preference judgments. It derives from Kornhauser and Sager’s doctrinal paradox and List and Pettit’s discursive dilemma, two problems that we distinguish emphatically here. The current theor...
متن کاملEffects of neutralizing antibodies to interferon beta in multiple sclerosis: a logical paradox.
Already more than 20 years ago, in the pivotal trial of IFNb-1b, it was shown that NAbs totally blocked the clinical effects of IFNb-1b. In months 13–36, when NAbs had developed, the relapse rate in NAb-positive patients was reduced by 50% compared with that in NAb-negative patients and was similar to the relapse rate in placebo-treated patients. Since then a large number of studies with an app...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Mind
سال: 1894
ISSN: 0026-4423,1460-2113
DOI: 10.1093/mind/iii.12.583-a