Necessary Truth and Proof
نویسنده
چکیده
What makes necessary truths true? I argue that all truth supervenes on how things are, and that necessary truths are no exception. What makes them true are proofs. But if so, the notion of proof needs to be generalized to include verification-transcendent proofs, proofs whose correctness exceeds our ability to verify it. It is incumbent on me, therefore, to show that arguments, such as Dummett’s, that verification-truth is not compatible with the theory of meaning, are mistaken. The answer is that what we can conceive and construct far outstrips our actual abilities. I conclude by proposing a proof-theoretic account of modality, rejecting a claim of Armstrong’s that modality can reside in non-modal truthmakers. keywords Truthmakers, Modality, Truth, Proof reSUMo O que faz verdadeiras as verdades necessárias? Defendo que qualquer verdade sobrevém das coisas como elas são, e que as verdades necessárias não são exceções. O que as faz verdadeiras são provas. Mas, se assim for, a noção de prova precisa ser generalizada para incluir provas de verificação-transcendente, provas cuja correção extrapola a nossa própria habilidade de verificação. Além disso, tenho a incumbência de mostrar que argumentos, como o de Dummett, segundo o qual a verdade em termos de verificação não é compatível com a teoria do significado, não procedem. A resposta consiste no fato de que aquilo que podemos conceber e construir ultrapassa nossas habilidades efetivas. Concluo propondo um tratamento * Presented at the conference ‘(Anti-)Realisms, Logic and Metaphysics’: Nancy, 28 June-1 July 2006 ** Professor of History and Philosophy of Logic, University of St. Andrews. Recebido em 01/10/2009 e aprovado em 01/12/2009. kriterioN, Belo Horizonte, no 121, Jun./2010, p. 47-67.
منابع مشابه
“Stop, You’re Killing us!” An Alternative Take on Populism and Public Health; Comment on “The Rise of Post-truth Populism in Pluralist Liberal Democracies: Challenges for Health Policy”
Ewen Speed and Russell Mannion correctly identify several contours of the challenges for health policy in what it is useful to think of as a post-democratic era. I argue that the problem for public health is not populism per se, but rather the distinctive populism of the right coupled with the failure of the left to develop compelling counternarratives. Further, defences of ‘science’ must be te...
متن کاملTruth Values and Connectives in Some Non-Classical Logics
The question as to whether the propositional logic of Heyting, which was a formalization of Brouwer's intuitionistic logic, is finitely many valued or not, was open for a while (the question was asked by Hahn). Kurt Gödel (1932) introduced an infinite decreasing chain of intermediate logics, which are known nowadays as Gödel logics, for showing that the intuitionistic logic is not finitely (man...
متن کاملدروغگویی به بیمار با انگیزهی خیرخواهانه
Telling the truth to patients is a key issue in medical ethics. Today, most physicians hold that truth-telling to patients is crucial, and that lying to patients or withholding information from them is not acceptable. It seems, however, that absolute and unconditional truth-telling is not always possible, and it may not be feasible to tell some patients certain truths under some circumstances. ...
متن کاملAn Investigation of Norm of Belief’s Proper Formulation
That falsity is a defect in belief can be captured with a prohibitive norm holding that truth is the necessary condition for permissibility of belief. Furthermore, such a formulation avoids the difficulties encountered in earlier literature that offered prescriptive norms. The normativity of belief thesis is widely discussed in the literature. I criticise bi-conditional formulation of the norm ...
متن کاملDValue for Boolean games is EXP-complete
We show that the following problem is EXP-complete: given a rational v and a two player, zero-sum Boolean gameG determine whether the value of G is at least v. The proof is via a translation of the proof of the same result for Boolean circuit games in [1]. 1 Preliminaries We will be using the encoding of [2] to replicate the proof of [1]. A familiarity with [2] will make the proof much easier t...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 2012