Plantinga's Necessary A Posteriori Truths

1978 ◽  
Vol 8 (2) ◽  
pp. 323-327
Author(s):  
Gregory W. Fitch
Keyword(s):  
Actual World ◽  
Possible Worlds ◽  
A Priori ◽  
The Other ◽  
Traditional View ◽  
Alvin Plantinga ◽  
A Posteriori ◽  
Necessary A Posteriori ◽  
Necessary Truths

Alvin Plantinga has recently argued that there are certain propositions which are necessary but known only a posteriori. If Plantinga is correct then he has shown that the traditional view that all necessary truths are knowable a priori is false. Plantinga's examples deserve special attention because they differ in important respects from other proposed examples of necessary a posteriori truths. His examples depend on a certain conception of possible worlds and in particular on his conception of the actual world. It will be argued that these examples of necessary a posteriori propositions can be understood in two different ways. According to one way of understanding Plantinga, the propositions turn out to be contingent a posteriori truths, and according to the other way they turn out to be necessary a priori truths. The plausibility of Plantinga's position is due to a confusion between the two possible interpretations.

De Sousa On Kripke And Theoretical Identities

1975 ◽  
Vol 5 (1) ◽  
pp. 137-141 ◽  
Author(s):  
R. M. Yoshida
Keyword(s):  
Possible Worlds ◽  
The Other ◽  
Saul Kripke ◽  
A Posteriori ◽  
Rigid Designator ◽  
Rigid Designators ◽  
Necessary A Posteriori ◽  
Other Hand ◽  
Identity Statement ◽  
Naming And Necessity

In the by now well known talks he gave at Princeton, Saul Kripke claimed that “[t]heoretical identities … are generally identities involving two rigid designators and therefore are examples of the necessary a posteriori.” (Published as “Naming and Necessity,” in G. Harmon and D. Davidson, eds., Semantics of Natural Language (Dordrecht, 1972) 253-355; (hereafter referred to as “NN”; this quote p. 331.) A rigid designator is an expression that designates the same object in all possible worlds when it is used. So Kripke is claiming that ‘Water is H20’ and ‘Heat is the motion of molecules’ are generally identities involving expressions like ‘water’ and ‘the motion of molecules’ which designate the same objects in all possible worlds. If the identity statement is true, both sides designate the same object rigidly, i.e., in all possible worlds, and therefore the statement is necessarily true. On the other hand, whether it is true is determined ultimately by appeal to experience. It follows that if true, the identity is necessary a posteriori.

Kripke on Epistemic and Metaphysical Possibility

2014 ◽  
Author(s):  
Scott Soames
Keyword(s):  
The Other ◽  
A Posteriori ◽  
Singular Proposition ◽  
Metaphysical Possibility ◽  
Frege’S Puzzle ◽  
Frege's Puzzle ◽  
Necessary A Posteriori ◽  
Errors And Confusions

This chapter discusses Saul Kripke’s treatment of the necessary a posteriori and concomitant distinction between epistemic and metaphysical possibility. It extracts the enduring lessons of his treatment of these matters and disentangles them from errors and confusions that mar some of his most important discussions. It argues that there are two Kripkean routes to the necessary a posteriori—one correct and philosophically far-reaching; the other incorrect, philosophically misleading, and the source of damaging errors that persist to this day. It connects two false principles involved in the second, unsuccessful, route to the necessary a posteriori with the plausible and potentially correct idea that believing a singular proposition that o is F always involves also believing a richer more descriptively informative proposition in which some further property plays a role in the agent’s thoughts about o. It explains why this idea will not save the failed second route to the necessary a posteriori and suggests that it may help reconcile Kripke’s insights with the lessons of Frege’s puzzle.

Metaphysics

2017 ◽  
Author(s):  
Colin McGinn
Keyword(s):  
Conceptual Analysis ◽  
Possible Worlds ◽  
A Priori ◽  
A Posteriori ◽  
De Re ◽  
Necessary Truth ◽  
Possible Worlds Theory ◽  
De Dicto

This chapter explores philosophical issues in metaphysics. It begins by distinguishing between de re and de dicto necessity. All necessity is uniformly de re; there is simply no such thing as de dicto necessity. Indeed, in the glory days of positivism, all necessity was understood as uniformly the same: a necessary truth was always an a priori truth, while contingent truths were always a posteriori. The chapter then assesses the concept of antirealism. Antirealism is always an error theory: there is some sort of mistake or distortion or sloppiness embedded in the usual discourse. The chapter also considers paradoxes, causation, conceptual analysis, scientific mysteries, the possible worlds theory of modality, the concept of a person, the nature of existence, and logic and propositions.

Fragmentation and Singular Propositions

2021 ◽  
pp. 183-198
Author(s):  
Robert Stalnaker
Keyword(s):  
Possible Worlds ◽  
Propositional Attitudes ◽  
Phenomenal Experience ◽  
A Posteriori ◽  
Possible World ◽  
Intentional States ◽  
Singular Propositions ◽  
Necessary A Posteriori

Two puzzles are described: a problem about necessary a posteriori truths and a problem about propositional attitudes with singular propositions as their contents. Two strategies for solving them are compared. The first is the diagonalization strategy, which distinguishes possible worlds that are compatible with what is actually expressed by a given sentential clause from possible worlds that are compatible with what would be expressed by the clause if that possible world were actual. The second strategy is the fragmentation strategy, which represents the intentional states described by sentential clauses as separate nonintegrated representational states. It is argued that these are complementary, not competing, strategies. Both play a role in the solutions to the problems. In conclusion, it is suggested that these strategies can also help to clarify a number of further problems—about self-locating attitudes, about the nature of computation, and about knowledge of phenomenal experience.

The Effects of Aggregation and Timing on Budgeting: An Experiment

2010 ◽  
Vol 22 (1) ◽  
pp. 67-83 ◽  
Author(s):  
Anthony D. Nikias ◽  
Steven T. Schwartz ◽  
Eric E. Spires ◽  
Jim R. Wollscheid ◽  
Richard A. Young
Keyword(s):  
A Priori ◽  
Behavioral Effect ◽  
The Other ◽  
Image Management ◽  
A Posteriori ◽  
Project Cost ◽  
Face To Face

ABSTRACT: We conduct an experiment to study the behavioral effect of aggregation and timing on budgetary reports. Subordinates submit budgets to superiors regarding two projects in a face-to-face setting. There are three treatments: (1) AGG, wherein subordinates privately observe each project’s cost and submit one budget regarding the aggregate cost of the two projects, (2) SEQ, wherein subordinates observe and submit individual budgets sequentially, so are uncertain about the second-project cost when they submit their first-project budget, and (3) DEL, wherein budgets are delayed, so that subordinates observe both costs before providing individual budgets. In all treatments superiors must approve the budget and subordinates can create more slack by submitting a larger budget. Based on image management, guilt alleviation, and preferences for honesty, we hypothesize that subordinates will (1) create more slack in AGG than in the other two treatments, (2) create more slack in DEL than in SEQ, and (3) decrease their slack creation from the first project to the second project more in SEQ than in DEL. Our results generally support all three hypotheses. However, analysis of the results does not support our a priori beliefs regarding the nonpecuniary motivations of subordinates. We argue, a posteriori, that a likely explanation for our findings is that increased face-to-face interactions in SEQ and DEL cause subordinates to care more about the welfare of the superior than in AGG. In general, the results indicate that frequent budget interactions may provide control benefits to superiors.

Anchoring world and time in biblical Hebrew

2004 ◽  
Vol 40 (3) ◽  
pp. 491-526 ◽  
Author(s):  
GALIA HATAV
Keyword(s):  
Noun Phrase ◽  
Actual World ◽  
Possible Worlds ◽  
Biblical Hebrew ◽  
The Other ◽  
Definite Article ◽  
Verbal System ◽  
Reference Time ◽  
Three Components

One of the most puzzling issues in biblical Hebrew has been its verbal system. In this article, I deal with one of the forms, namely wayyiqtol, suggesting that its meaning is compositional, calculated from three components: a verbal base and two morphemes. The verbal base is shown to be modal, involving quantification over possible worlds. The two morphemes prefixed to the verbal base restrict its modal nature. One morpheme functions like the definite article in a noun phrase; it picks out one of the possible worlds, the familiar actual world (Wo), and anchors the event into it. The other morpheme builds a reference-time, locating the event in time.

scholarly journals Naming and necessity in a two-dimensional semantic framework

KÜLÖNBSÉG ◽  
2012 ◽  
Vol 10 (1) ◽  
Author(s):  
János Kovács
Keyword(s):  
Philosophy Of Language ◽  
Causal Model ◽  
A Priori ◽  
Proper Names ◽  
Two Dimensional ◽  
A Posteriori ◽  
Semantic Framework ◽  
Contingent A Priori ◽  
Necessary A Posteriori ◽  
Naming And Necessity

This paper surveys the relevance of Kripke’s semantics of proper names. In his Naming and Necessity Kripke takes issue with Frege’s and Russell’s descriptive semantics of proper names. He proposes a new model called the causal model of proper names. Kripke’s model of the philosophy of language have challenged the relation of the metaphysical concepts necessity/contingency and the epistemological concepts apriority/a posteriority, respectively. Since Kant it has been accepted that all a priori truth is necessary, while all a posteriori truth is contingent. Kripke’s book has changed these tenets and nowadays it is accepted that the four concepts are independent of each other and that the complex concepts generated with them have instance.   This paper investigates Kripke’s arguments on necessity and apriority in a two-dimensional semantic framework. The paper argues that the two-dimensional model is in harmony with Kripke’s model although Soames has been claiming the opposite in several publications. The paper claims that Soames’ theory of direct reference is unable to account for necessary a posteriori and contingent a priori statements.

Kripke’s Contingent A Priori and Necessary A Posteriori

1985 ◽  
Vol 11 ◽  
pp. 481-489
Author(s):  
Peter Nicholls ◽  
Dan Passell ◽  
Keyword(s):  
A Priori ◽  
A Posteriori ◽  
Contingent A Priori ◽  
Necessary A Posteriori

Necessary truth and convention

2018 ◽  
Author(s):  
Alan Sidelle
Keyword(s):  
A Priori ◽  
Word Meaning ◽  
A Priori Knowledge ◽  
A Posteriori ◽  
Necessary Truth ◽  
Necessary Truths ◽  
Priori Knowledge

Necessary truths have always seemed problematic, particularly to empiricists and other naturalistically-minded philosophers. Our knowledge here is a priori - grounded in appeals to what we can imagine or conceive (or can prove on that basis) - which seems hard to reconcile with such truths being factual, short of appealing to some peculiar faculty of a priori intuition. And what mysterious extra feature do necessary truths possess which makes their falsity impossible? Conventionalism about necessity claims that necessary truths obtain by virtue of rules of language, such as that ‘vixen’ means the same as ‘female fox’. Because such rules govern our descriptions of all cases - including counterfactual or imagined ones - they generate necessary truths (‘All vixens are foxes’), and our a priori knowledge is just knowledge of word meaning. Opponents of conventionalism argue that conventions cannot ground necessary truths, particularly in logic, and have also challenged the notion of analyticity (truth by virtue of meaning). More recent claims that some necessary truths are a posteriori have also fuelled opposition to conventionalism.

Knowledge

2017 ◽  
Author(s):  
Colin McGinn
Keyword(s):  
A Priori ◽  
External World ◽  
The Other ◽  
A Priori Knowledge ◽  
A Posteriori ◽  
Knowledge Tradition ◽  
The Senses ◽  
Priori Knowledge

This chapter focuses on philosophical issues in knowledge. Tradition insists that knowledge falls into two broad classes: a priori knowledge and a posteriori knowledge. These categories are conceived as exclusive and exhaustive: no piece of knowledge is both a priori and a posteriori, and any piece of knowledge is one or the other. One can characterize a posteriori knowledge as knowledge acquired by means of the senses (“by experience”) and a priori knowledge as knowledge not so acquired, but rather acquired “by reason alone” or “intuitively.” The chapter then addresses the proof or evidence of the existence of an external world, and looks deeper into what knowledge is and whether knowledge implies truth.

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