Reduction and abduction in chemistry‐a response to Scerri

Eric Scerri has proposed an account of how reduction might be understood in chemistry. He claims to build on a general aspect of Popper's views which survives his otherwise heavy criticism, namely adherence to actual scientific practice. This is contrasted with Nagel's conception, which Scerri takes to be the philosopher's standard notion. I argue that his proposal, interesting though it is, is not so foreign to ideas in the tradition within which Nagel wrote as Scerri would have us believe. Moreover, actual scientific practice can be commandeered in support of a holistic conception which Popper contrasted with what he saw as the admirable strivings towards reduction in science.     

Normative naturalism and Popperian views on reduction

Eric Scerri has argued that chemists using ab initio calculations pursue a partial reduction of chemistry to physics, while accepting that full reduction (through axiomatization) is impractical. He characterizes this view as Popperian and naturalistic. However, Popper's position on reduction is not naturalistic, as he rejected axiomatization for different reasons.     

Popper's world 3 & human creativity

This paper aims to analyse Karl Popper's conception of ‘three worlds’, and especially the problem of world 3—the world of objective knowledge. Firstly, I try to explain Popper's turn to ontological questions which I link to his antipsychologism and to issues raised by the development of logic after World War II. I then consider Popper's concept of the autonomy of world 3 and his attempt to introduce world 3 as a world of knowledge without a knowing subject. I conclude that Popper did not succeed in unifying his central idea of autonomy of knowledge with the requirement of the creative role of the critical subject carrying out the evolution of knowledge. I see the core of this contradiction especially in his co‐existing ideas of the timeless existence of world 3 and the elimination of the subject from it. The attempt to desubjectivize the realm of objective knowledge leads to a philosophically unbalanced standpoint which presupposes a creative subject and at the same time neglects it. Finally, I question Popper's account of the growth of world 3. Popper considers only cognitive motivations, and excludes a broad range of motivating factors which originate in the problems which we face in our lives, and affect our cognitive interests in world 3.     

Rationality and the tu quoque argument

The tu quoque argument is the argument that since in the end rationalism rests on an irrational choice of and commitment to rationality, rationalism is as irrational as any other commitment. Popper's and Polanyi's philosophies of science both accept the argument, and have on that account many similarities; yet Popper manages to remain a rationalist whereas Polanyi decided for an irrationalist version of rationalism. This is more marked in works of their respective followers, W. W. Bartley III and Thomas S. Kuhn. Bartley declares the rationalist's very openness to criticism open to criticism, in the hope of rendering Popper's critical rationalism quite comprehensive. Kuhn makes rationality depend on the existence of an accepted model for scientific research (paradigm), thus rendering Polanyi's view of the authority of scientific leadership a sine qua non for scientific progress. The question raised here is, in what sense is a rationalist committed to his rationality, or an irrationalist to his specific axiom ? The tradition views only the life‐long commitment as real. Viewing rationality as experimental open‐mindedness, we may consider a rationalist unable to retreat into any life‐long commitment — even commitment to science. In this way the logic of the tu quoque argument is made irrelevant: anyone able to face the choice between rationality and commitment is already beyond such a choice; it is one thing to be still naïve and another — and paradoxical — thing to return to one's naïveté.     

Phenomenological Reduction,Epochē, and the Speech of Socrates in the Symposium

The point of the present article is to investigate whether the key conceptions of epochē and reduction as found in Husserl's phenomenology can be brought to bear in a fruitful rereading of the speech of Socrates in Plato's Symposium.¹ In pursuit of this goal, I will begin by revisiting the traditional reading of this speech in terms of a scala amoris in which the erotic subject is guided from attachment to a series of inferior objects to the Beautiful and Good itself such that the value of all preceding attachments is suspended. The critique that this approach to love instrumentalizes all but the transcendent Good is one that is found both within and without the text. In opposition to this reading, however, I will suggest that Husserl's notions of epochē and reduction enable us to read the speech not as an instrumentalizing scala but in terms of a reflective distance in which our immersion in and with the erotic object is suspended so that we might reappropriate the real meaning of erotic engagement. According to this reading, Plato does not negate the particular or lower forms of eros but reinscribes them with a value derived from their position in relation to the ultimate. The suspension of the lower forms, then, is not final but is merely employed in order to let what occurs in erotic engagement show itself.     

Proof and truth in Lakatos's masterpiece

Proofs and Refutations is Lakatos's masterpiece. This article investigates some of its central themes, in particular: the nature of proofs ('Proofs do not prove, they improve'); the nature of definitions (real, not nominal); and the consequences of all this for ontology (platonism vs Popper's World Three).     

Toward a Spinozistic modification of skinner's theory of man

B. F. Skinner argues in Beyond Freedom and Dignity (New York 1971) that only his theory of man is compatible with a ‘scientific’ approach to human behavior. I argue that Skinner's entirely open‐ended view of man is inadequate for his own purposes in that it leaves no room for the claim that certain value judgments are universally valid, something I argue Skinner is committed to despite an explicit avowal in one place of cultural relativism. I then go on to show that a modification of Skinner's theory of man which builds on Spinoza's notion of conatus would provide one with a theory‐based rationale for universally valid judgments without involving one in a ‘non‐scientific’ approach to human behavior. Specifically, I argue that such a Spinozistic modification would provide one with a theory‐based guarantee that man will not evolve in such a way that a truly scientific observer would deem a totalitarian state good.     

Forty years on: Anti‐naturalism,and problems of social experiment and piecemeal social reform

In The Poverty of Historicism, Karl Popper attacked a number of anti‐naturalistic doctrines while advocating a program of piecemeal social reform. However, recent work in social science, and especially in the evaluation of social programs and social reforms, has exposed difficulties that have led many scientists to fall back on one or other of these same anti‐naturalistic positions. It is suggested that Popper's strategy for dealing with anti‐naturalism is no longer efficacious, although the difficulties in contemporary social science do not warrant the abandonment of naturalism.     

KAUFMAN'S DEBT TO KANT: THE EPISTEMOLOGICAL IMPORTANCE OF THE “STRUCTURE OF THE WORLD WHICH ENVIRONS US”

Gordon Kaufman's “constructive theology” can easily be taken out of context and misunderstood or misrepresented as a denial of God. It is too easily overlooked that in his approach everything is an imaginary construct given no immediate ontological status—the self, the world, and God are “products of the imagination.” This reflects an influence, not only of theories on linguistic and cultural relativism, but also of Kant's “ideas of pure reason.” Kaufman is explicit about this debt to Kant. But I argue there are other aspects of Kant's legacy implicit in his method. These center around Kaufman's engagement with “observed patterns” in nature. With Paul Tillich's aid, I bring this neglected issue to the fore and argue that addressing it allows one to more readily capitalize upon the Kantian influence in Kaufman's method. This, in turn, encourages one to tap more deeply into the epistemic underpinnings of Kaufman's approach to the science–religion dialogue.     

Two Conceptions of Inequality

Abstract

Following Temkin's Inequality I take my point of departure in an individualistic approach according to which a situation is bad in respect of inequality to the extent individuals in it have egalitarian complaints. After having criticised some of Temkin's notions of inequality, I argue that there are two proper egalitarian conceptions, the Equal Share Conception and the Place Conception. The first concerns how much welfare an individual can claim to have in order to have what she should have in virtue of equality. The second concerns an individual's egalitarian complaint in so far as it depends on her place in a situation's distribution of welfare. I argue that the first conception can be employed in a defence of Telic Egalitarianism against Derek Parfit's Levelling Down Objection and that the second one can explain why this objection may seem so convincing. I also argue that Telic Egalitarianism, understood according to the first conception, in one respect is preferable to Parfit's Priority View.     

Kant on Intentionality,Magnitude, and the Unity of Perception

This paper addresses a number of closely related questions concerning Kant's model of intentionality, and his conceptions of unity and of magnitude [Gröβe]. These questions are important because they shed light on three issues which are central to the Critical system, and which connect directly to the recent analytic literature on perception: the issues are conceptualism, the status of the imagination, and perceptual atomism. In Section 1, I provide a sketch of the exegetical and philosophical problems raised by Kant's views on these issues. I then develop, in Section 2, a detailed analysis of Kant's theory of perception as elaborated in both the Critique of Pure Reason and the Critique of Judgment; I show how this analysis provides a preliminary framework for resolving the difficulties raised in Section 1. In Section 3, I extend my analysis of Kant's position by considering a specific test case: the Axioms of Intuition. I contend that one way to make sense of Kant's argument is by juxtaposing it with Russell's response to Bradley's regress; I focus in particular on the concept of ‘unity’. Finally, I offer, in Section 4, a philosophical assessment of the position attributed to Kant in Sections 2 and 3. I argue that, while Kant's account has significant strengths, a number of key areas remain underdeveloped; I suggest that the phenomenological tradition may be read as attempting to fill precisely those gaps.     

Phenomenological reduction in Merleau‐Ponty's The Structure of Behavior: An alternative approach to the naturalization of phenomenology

Approaches to the naturalization of phenomenology usually understand naturalization as a matter of rendering continuous the methods, epistemologies, and ontologies of phenomenological and natural scientific inquiry. Presupposed in this statement of the problematic, however, is that there is an original discontinuity, a rupture between phenomenology and the natural sciences that must be remedied. I propose that this way of thinking about the issue is rooted in a simplistic understanding of the phenomenological reduction that entails certain assumptions about the subject matter of phenomenology and its relationship to the natural sciences. By contrast, Merleau‐Ponty's first work, The Structure of Behavior, presents a radically different approach to the phenomenological reduction, one that traverses the natural sciences and integrates them into phenomenology from the outset. I outline the argument for this position in The Structure of Behavior and then discuss consequences for current methodological issues surrounding the naturalization of phenomenology, focusing on the relationship between empirical sciences of mind, phenomenological psychology, and transcendental phenomenology. This novel exegesis of Merleau‐Ponty's view on the reduction offers new insight into his oft‐quoted remark that the phenomenological reduction is impossible to complete.     

THE LOST LEGACY OF ANSELM'S ARGUMENT: RE‐THINKING THE PURPOSE OF PROOFS FOR THE EXISTENCE OF GOD

In his Proslogion, Anselm presents a proof for God's existence which has attracted a tremendous amount of scholarly attention. In spite of all that has been said about this proof and proofs for God's existence more generally, scholarly consensus seems to dissipate when it comes to determining whether theistic proofs are persuasive and sound. In this article, I will argue that there is a way to provide compelling proof for the existence of God. To substantiate this claim, I will not attempt to prove that God exists apart from His revelation in any of the ways that have been advocated by various philosophers of religion. Rather, I will endeavor to explain that Anselm's approach to offering evidence for God's existence is quite different from the approach that modern philosophers tend to attribute to him and to elaborate on what that approach involves by reading Anselm's argument in the context of Augustine's De Trinitate and the whole of the Proslogion.     

Autonomy and the Authority of Personal Commitments: From Internal Coherence to Social Normativity

Abstract

It has been argued – most prominently in Harry Frankfurt's recent work – that the normative authority of personal commitments derives not from their intrinsic worth but from the way in which one's will is invested in what one cares about. In this essay, I argue that even if this approach is construed broadly and supplemented in various ways, its intrasubjective character leaves it ill-prepared to explain the normative grip of commitments in cases of purported self-betrayal. As an alternative, I sketch a view that focuses on intersubjective constraints of intelligibility built into social practices and on the pragmatics of how those norms are contested in an ongoing fashion.     

Patterns of argumentation in Galileo's Discorsi

In this contribution I intend to reconstruct and evaluate one of Galileo's famous arguments given in the Discorsi against a well‐entrenched thesis of Aristotelian physics. It will be shown that Galileo's reduction‐to‐the‐absurd type of counterargument is, although seemingly cogent, after all fallacious. I ascribe Galileo's committing of this fallacy to his looking at the Aristotelian physics through the (Kuhnian type) paradigmatic “spectacles” of his own new physics.     

Dialogue on the hypothetical character of logical analysis

Reconstructing Popper's research programme for the Human Sciences, Noretta Koertge (Inquiry, Vol. 18 [1975]) has given a deductive‐nomological account of explanations of actions by means of a Rationality Principle. It is argued here that such a Rationality Principle is fundamentally redundant. Neither is it logically necessary in order to deduce a cognitive action‐explanandum, nor can it be given a semantic non‐empty interpretation, at least not within Koertge's own syllogism. Any attempt to save the Rationality Principle as unfalsifiablc but nevertheless indispensable for action explanations is rejected in the light of possible alternative action explanations by empirical and therefore in principle falsifiable psychological laws.     

A REFUTATION OF PURE CONJECTURE

The present paper explores three interrelated topics in Popper's theory of science: (1) his view of conjecture, (2) the aim of science, and (3) his (never fully articulated) theory of meaning. Central to Popper's theory of science is the notion of conjecture. Popper writes as if scientists faced with a problem proceed to tackle it by conjecture, that is, by guesses uninformed by inferential considerations. This paper develops a contrast between guesses and educated guesses in an attempt to show that there is more to scientific conjecture than conjecture. The suggestion is made that some inductive considerations enter into the process of educated guessing or scientific conjecture in such a way that the ‘context of discovery’ cannot be sharply separated from the ‘context of justification’. This discussion leads to a tension between Popper's negative method of conjecture and his realism. Given Popper's (implicit) theory of meaning it seems Popper's epistemology (the conjecture and refutation method) is incompatible with his metaphysical realism.     

An Accuracy Based Approach to Higher Order Evidence

The aim of this paper is to apply the accuracy based approach to epistemology to the case of higher order evidence: evidence that bears on the rationality of one's beliefs. I proceed in two stages. First, I show that the accuracy based framework that is standardly used to motivate rational requirements supports steadfastness—a position according to which higher order evidence should have no impact on one's doxastic attitudes towards first order propositions. The argument for this will require a generalization of an important result by Greaves and Wallace for the claim that conditionalization maximizes expected accuracy. The generalization I provide will, among other things, allow us to apply the result to cases of self‐locating evidence. In the second stage, I develop an alternative framework. Very roughly, what distinguishes the traditional approach from the alternative one is that, on the traditional picture, we're interested in evaluating the expected accuracy of conforming to an update procedure. On the alternative picture that I develop, instead of considering how good an update procedure is as a plan to conform to, we consider how good it is as a plan to make. I show how, given the use of strictly proper scoring rules, the alternative picture vindicates calibrationism: a view according to which higher order evidence should have a significant impact on our beliefs. I conclude with some thoughts about why higher order evidence poses a serious challenge for standard ways of thinking about rationality.