A response to Oppy, and to Davey and Clifton

2002 ◽  
Vol 38 (1) ◽  
pp. 89-99 ◽  
Author(s):  
RICHARD M. GALE ◽  
ALEXANDER R. PRUSS
Keyword(s):  
Sufficient Reason ◽  
True Proposition ◽  
Cosmological Argument ◽  
Existence Of God ◽  
Principle Of Sufficient Reason ◽  
Entailment Relation ◽  
Strong Principle

Our paper ‘A new cosmological argument’ gave an argument for the existence of God making use of the weak Principle of Sufficient Reason (W-PSR) which states that for every proposition p, if p is true, then it is possible that there is an explanation for p. Recently, Graham Oppy, as well as Kevin Davey and Rob Clifton, have criticized the argument. We reply to these criticisms. The most interesting kind of criticism in both papers alleges that the W-PSR can be justifiably denied by the atheist, and constitutes no improvement on the strong Principle of Sufficient Reason (S-PSR) which claims that every true proposition in fact has an explanation. The criticism is predicated on the fact that it can be shown that the W-PSR entails the S-PSR. We argue that the W-PSR's plausibility remains despite the criticisms. From this it can be seen to follow that the entailment relation between the W-PSR and the S-PSR gives one reason to believe the S-PSR.

A restricted Principle of Sufficient Reason and the cosmological argument

2004 ◽  
Vol 40 (2) ◽  
pp. 165-179 ◽  
Author(s):  
ALEXANDER R. PRUSS
Keyword(s):  
Ad Hoc ◽  
Sufficient Reason ◽  
Quantum Mechanical ◽  
Cosmological Argument ◽  
Existence Of God ◽  
Restricted Version ◽  
Van Inwagen ◽  
Principle Of Sufficient Reason ◽  
Peter Van Inwagen ◽  
Mechanical Phenomena

The Principle of Sufficient Reason (PSR) says that, necessarily, every contingently true proposition has an explanation. The PSR is the most controversial premise in the cosmological argument for the existence of God. It is likely that one reason why a number of philosophers reject the PSR is that they think there are conceptual counter-examples to it. For instance, they may think, with Peter van Inwagen, that the conjunction of all contingent propositions cannot have an explanation, or they may believe that quantum mechanical phenomena cannot be explained. It may, however, be that these philosophers would be open to accepting a restricted version of the PSR as long as it was not ad hoc. I present a natural restricted version of the PSR that avoids all conceptual counter-examples, and yet that is strong enough to ground a cosmological argument. The restricted PSR says that all explainable true propositions have explanations.

scholarly journals Merely possible explanation

2010 ◽  
Vol 47 (3) ◽  
pp. 359-370
Author(s):  
GHISLAIN GUIGON
Keyword(s):  
Sufficient Reason ◽  
Cosmological Argument ◽  
Principle Of Sufficient Reason ◽  
Strong Principle

AbstractGraham Oppy has argued that possible explanation entails explanation in order to object to Richard Gale and Alexander Pruss's new cosmological argument that it does not improve upon familiar cosmological arguments. Gale and Pruss, as well as Pruss individually, have granted Oppy's inference from possible explanation to explanation and argue that this inference provides a reason to believe that the strong principle of sufficient reason is true. In this article, I shall undermine Oppy's objection to the new cosmological argument by arguing that it is logically possible that some truths are merely possibly explained.

Insufficient reason in the ‘new cosmological argument’

2001 ◽  
Vol 37 (4) ◽  
pp. 485-490 ◽  
Author(s):  
KEVIN DAVEY ◽  
ROB CLIFTON
Keyword(s):  
Recent Article ◽  
Sufficient Reason ◽  
Cosmological Argument ◽  
Existence Of God ◽  
Principle Of Sufficient Reason ◽  
Insufficient Reason ◽  
The Way

In a recent article in this journal, Richard Gale and Alexander Pruss offer a new cosmological proof for the existence of God relying only on the Weak Principle of Sufficient Reason, W-PSR. We argue that their proof relies on applications of W-PSR that cannot be justified, and that our modal intuitions simply do not support W-PSR in the way Gale and Pruss take them to.

The Necessity of Sufficiency

2018 ◽  
Author(s):  
Bruce L. Gordon
Keyword(s):  
Recent Work ◽  
Quantum Physics ◽  
Structural Realism ◽  
Sufficient Reason ◽  
Divine Action ◽  
Ontic Structural Realism ◽  
Existence Of God ◽  
Principle Of Sufficient Reason ◽  
Adequate Understanding ◽  
Quantum Phenomena

There is an argument for the existence of God from the incompleteness of nature that is vaguely present in Plantinga’s recent work. This argument, which rests on the metaphysical implications of quantum physics and the philosophical deficiency of necessitarian conceptions of physical law, deserves to be given a clear formulation. The goal is to demonstrate, via a suitably articulated principle of sufficient reason, that divine action in an occasionalist mode is needed (and hence God’s existence is required) to bring causal closure to nature and render it ontologically functional. The best explanation for quantum phenomena and the most adequate understanding of general providence turns out to rest on an ontic structural realism in physics that is grounded in the immaterialist metaphysics of theistic idealism.

Being and Reason

2019 ◽  
Author(s):  
Martin Lin
Keyword(s):  
Sufficient Reason ◽  
Existence Of God ◽  
Principle Of Sufficient Reason ◽  
Existence And Nonexistence ◽  
New Interpretation ◽  
Necessary Existence

In Being and Reason, Martin Lin offers a new interpretation of Spinoza’s core metaphysical doctrines with attention to how and why, in Spinoza, metaphysical notions are entangled with cognitive, logical, and epistemic ones. For example, according to Spinoza, a substance is that which can be conceived through itself, and a mode is that which is conceived through another. Thus, metaphysical notions, substance and mode, appear to be defined through a notion that is either cognitive or logical, being conceived through. What are we to make of the intimate connections that Spinoza sees between metaphysical, cognitive, logical, and epistemic notions? Or between being and reason? Lin argues against idealist readings according to which the metaphysical is reducible to or grounded in something epistemic, logical, or psychological. He maintains that Spinoza sees the order of being and the order of reason as two independent structures that mirror one another. In the course of making this argument, he develops new interpretations of Spinoza’s notions of attribute and mode, and of Spinoza’s claim that all things strive for self-preservation. Lin also argues against prominent idealist readings of Spinoza according to which the Principle of Sufficient Reason is absolutely unrestricted for Spinoza and is the key to his system. He contends, rather, that Spinoza’s metaphysical rationalism is a diverse phenomenon and that the Principle of Sufficient Reason is limited to claims about existence and nonexistence which are applied only once by Spinoza to the case of the necessary existence of God.

scholarly journals Metaphysical Rationalism

2019 ◽  
pp. 164-181
Author(s):  
Martin Lin
Keyword(s):  
Sufficient Reason ◽  
Existence Of God ◽  
Identity Of Indiscernibles ◽  
Principle Of Sufficient Reason ◽  
Limited Scope

This chapter explores the meaning of Spinoza’s Principle of Sufficient Reason (the PSR) and the role it plays in his system. Some commentators have argued that Spinoza’s PSR applies to every truth and that Spinoza relies on it in deriving a great deal of his system. Against such interpretations, this chapter argues that Spinoza’s PSR is restricted to existential truths and is applied only once by Spinoza, to the case of the existence of God. In making this case, it considers Spinoza’s arguments for necessitarianism, causal and conceptual dependence, and the identity of indiscernibles, and it concludes that none of them rely on the PSR. It further argues that the limited scope of Spinoza’s PSR is a philosophical advantage because a fully unrestricted PSR is an unattractive doctrine that creates demands for explanation that cannot be met.

God

2019 ◽  
pp. 53-73
Author(s):  
Martin Lin
Keyword(s):  
Lessons Learned ◽  
Sufficient Reason ◽  
Existence Of God ◽  
The Third ◽  
Principle Of Sufficient Reason ◽  
Definition Of ◽  
The Way

This chapter offers reconstructions of Spinoza’s four arguments for the existence of God. Among the lessons learned from these reconstructions is that, although Spinoza’s first argument is often described as ontological, it relies on many substantive premises that go beyond the definition of God and it is not vulnerable to standard objections to ontological arguments. Additionally, the second argument introduces Spinoza’s Principle of Sufficient Reason, and seeing how Spinoza applies it to the existence of God sheds light on how he understands both the PSR and causation and explanation more generally. The chapter concludes by arguing that the third and fourth arguments pave the way for Spinoza’s claim that, besides God, no substance can be or be conceived and consideration of them shows why Spinoza’s argument for monism does not beg the question against the orthodox Cartesian.

Exclusion and Sufficient Reason

Philosophy ◽  
2010 ◽  
Vol 85 (3) ◽  
pp. 391-397
Author(s):  
N. M. L. Nathan
Keyword(s):  
Sufficient Reason ◽  
True Proposition ◽  
Cosmological Argument

AbstractI argue for two principles by combining which we can construct a sound cosmological argument. The first is that for any true proposition p's if ‘there is an explanation for p's truth’ is consistent then there is an explanation for p's truth. The second is a modified version of the principle that for any class, if there is an explanation for the non-emptiness of that class, then there is at least one non-member of that class which causes it not to be empty.

A new cosmological argument

1999 ◽  
Vol 35 (4) ◽  
pp. 461-476 ◽  
Author(s):  
RICHARD M. GALE ◽  
ALEXANDER R. PRUSS
Keyword(s):  
Sufficient Reason ◽  
Cosmological Argument ◽  
Weak Version ◽  
Strong Version ◽  
Begging The Question ◽  
Principle Of Sufficient Reason ◽  
Duns Scotus ◽  
Necessary Existence

We present a valid deductive cosmological argument for the necessary existence of a powerful and intelligent creator of the actual universe. Whereas traditional cosmological arguments had to employ a strong version of the principle of sufficient reason that held that every fact actually has an explanation, our argument can make do with the weak version of Duns Scotus according to which every fact possibly has an explanation. As a result, our argument is less vulnerable to the charge of begging the question than are these traditional cosmological arguments.

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