Online research in philosophy

Summary In two articles Friedrich Rapp argues that there is a methodological symmetry between falsification and verification in contradistinction to the logical asymmetry that obtains between them. (The Methodological Symmetry between Verification and Falsification,Ztschr. f. Allg. Wissth., Band VI/1 (1975), pp 139–144; A Helpful Argument — Reply to K. Eichner,Ztschr. f. Allg. Wissth., Band VII/1 (1976), pp. 121–123). Rapp puts forward the thesis that methodological falsification of a theory T implies the acceptance of an inference from ~ (x) Tx to (x) ~ Tx. However, this thesis does not have to be accepted even if the premises of Rapp's argument were accepted. Furthermore, Rapp has not shown that the falsification of a theory T implies that T will not be retained. Neither has Rapp formulated assumptions that are sufficient to guarantee that the outcome of an intended test of a theory T can be considered as an outcome of an actual test of T.

As hopes that generative linguistics might solve philosophical problems about the mind give way to disillusionment, old problems concerning the relationship between linguistics and philosophy survive unresolved. This collection surveys the historical engagement between the two, and opens up avenues for further reflection. In Part 1 two contrasting views are presented of the interface nowadays called 'philosophy of linguistics'. Part 2 gives a detailed historical survey of the engagement of analytic philosophy with linguistic problems during the present century, and sees the imposition by philosophers of an 'exploratory' model of thinking as a major challenge to the discipline of linguistics. Part 3 poses the problem of whether linguistics is dedicated to describing independently existing linguistic structures or to imposing its own structures on linguistic phenomena. In Part 4 Harris points out some similarities in the way an eminent linguist and an eminent philosopher invoke the analogy between languages and games; while Taylor analyses the rationale of our metalinguistic claims and their relationship to linguistic theorizing. Providing a wide range of views and ideas this book will be of interest to all those interested and involved in the interface of philosophy and linguistics.

Summary The article argues thatceteris paribus clauses have to be separated from another type of clauses called closure clauses. The former are associated with laws and theories, the latter with test situations of a particular kind. It is also argued that closure clauses, but notceteris paribus clauses, make Popper's falsifiability principle untenable. In that way, it also resolves the quarrel between Popper and Lakatos aboutceteris paribus clauses and falsifiability by saying that both are partly wrong and partly right.

Karl Popper equates simplicity with falsifiability. He develops his argument for this equation through a geometrical example. There is a flaw in his example, which undermines his claim that simplicity is falsifiability. I point out the flaw here.

Despite the platitude that analytic philosophy is deeply concerned with language, philosophers of science have paid little attention to methodological issues that arise within historical linguistics. I broach this topic by arguing that many inferences in historical linguistics conform to Reichenbach's common cause principle (CCP). Although the scope of CCP is narrower than many have thought, inferences about the genealogies of languages are particularly apt for reconstruction using CCP. Quantitative approaches to language comparison are readily understood as methods for detecting the correlations that serve as premises for common cause inferences, and potential sources of error in historical linguistics correspond to well-known limitations of CCP.

The purpose of this paper is to show that there are as many formulations of the process of falsification as there are archetypal, philosophical systems of inquiry. This paper explores several systems of inquiry which are based on Churchman's reading of the history of Western epistemology. It is argued that (1) the falsification of scientific theories can never be a purely formal process although it is perpetually open to formal exploration; (2) that contrary to current belief, falsification can never be more certain than confirmation because falsification involves judgments which are no more certain than those involved in confirmation. The supposed asymmetry between confirmation and falsification is severely challenged. Finally, a Feyerabendian and a Hegelian notion of falsification are explicitly developed and contrasted.

In this paper I consider three necessary conditions for a proposition counting as a theory: that the proposition be posited for its explanatory power; that it derive its feasibility from the extent to which it provides such explanatory power; and that it be empirically falsifiable. I then argue that some propositions might fail as theories because they do not satisfy the first two conditions, yet still satisfy the third condition. Such propositions I label falsifiable non-theories. I offer folk psychology (the proposition that beliefs, desires, and other intentional phenomena exist and play essential motivational and causal roles in many human actions) as a paradigm example of a falsifiable non-theory. I then argue that theism is in an analogous position. Like folk psychology, it fails to satisfy the first two conditions above for most theists. However, the empirical implications that theism has do make it susceptible to falsification. I demonstrate such falsifiability by an extreme scenario from Keith Yandell. Then I argue that recent work by Paul Draper demonstrates how a well articulated empirical argument from evil might threaten just such falsification.

From the time of its birth, Popper’s theory of falsifiability has been fiercely criticized from various viewpoints. In the author’s view, however, those various criticisms all have the same root in their assumption that a falsification must be certain and conclusive. As the theory of falsifiability has never had such an assumption, it is the source of misunderstanding. By discarding it, we can reply to every criticism and thereby clarify the role of falsifiability in our search for better knowledge; that is, it makes our attitude open to a yet unknown world. Key Words: Popper • falsifiability • openness • inconclusive falsification • second Popper legend.