Both Russell and Frege were inclined to think that there is nothing essentially linguistic about thought: any actual reliance of ours upon language is a mere psychological contingency. If so then it should be possible to formulate logic in such a way that logical relationships are not represented or expressed as principles pertaining to linguistic forms. Russell and Frege take pains to achieve this, but fail. I explain this by looking at some features of Grundgesetz and Principia . (...) Their failure, I suggest, is due to the nature of the case. (shrink)

The theory of knowledge in early twentieth-century Anglo American philosophy was oriented toward phenomenally described cognition. There was a healthy respect for the mind-body problem, which meant that phenomena in both the mental and physical domains were taken seriously. Bertrand Russell's developing position on sense-data and momentary particulars drew upon, and ultimately became like, the neutral monism of Ernst Mach and William James. Due to a more recent behaviorist and physicalist inspired "fear of the mental", this development has been (...) down-played in historical work on early analytic philosophy. Such neglect assumes that the "linguistic turn" is a proper and permanent effect of twentieth-century philosophy, an assumption that distorts early analytic historiography, and begs a substantive philosophical question about thought and cognition. (shrink)

The chapter concerns some aspects of Russell’s epistemological turn in the period after 1911. In particular, it focuses on two aspects of his philosophy in this period: his attempt to render material objects as constructions out of sense data, and his attitude toward sense data as “hard data.” It examines closely Russell’s “breakthrough” of early 1914, in which he concluded that, viewed from the standpoint of epistemology and analytic construction, space has six dimensions, not merely three. Russell (...) posits a three-dimensional personal or “perspective” space that is inhabited by sense data. This space then forms the basis for constructing the three dimensional space of physics (and of public things). I am concerned with the specifics of this construction: with the properties of the private spaces, the relations among those spaces, and their relation to physical space and to constructed “things,” such as pennies or tables. There are difficulties of interpretation with respect to these relations, which stem from the difficulty of finding a coherent interpretation of Russell’s claim that objects such as tables and pennies look smaller at a greater distance (or look trapezoidal or elliptical from some points of view). I don’t mean to challenge the phenomenal claim that objects do, in some sense, look small in the distance. Rather, I raise difficulties with Russell’s analysis of this fact, in which he appeals to both phenomenal experience and the findings of sensory psychology. I hold that if he wishes to maintain his phenomenal claim about objects appearing smaller with greater distance, he must alter or redescribe aspects of his construction of ordinary things. However, if his construction of things and physical space is based on a problematic description of the private spaces, then his claim that private or perspective spaces are very well known and provide the hard data for knowledge of the physical world faces a challenge. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:66 Discussion REJOINDER TO DEJNOZKA'S REPLY GARY OSTERTAG Philosophy/ New YorkU. New York,NY 10003, USA [email protected] It is common knowledge that Russell does not explicitly endorse modal logic in any of his major logical writings. Nor does my review of BertrandRusseli onModalityand LogicalRelevance' suggest that Jan Dejnozka denies or is somehow unaware of this. On the contrary, I assume it to be obvious that any commitment (...) class='Hi'>Russell may have had to modal logic must be implicitin his writings, nor explicit. The real issue is whether there is evidence of any such commitment. I will state, briefly,why I remain sceptical. First, Dejnozka's book lacks any interpretive methodology. When the question arises, In whichcontextsis itpermissibleto translateRusseli's language(formal orinformal)intoa modalsystem?, we get the following: amibute a modal logic to Russell if "it is more reasonable than not to paraphrase Russell's thinking into the modal logic." This condition, we are told, "is met to the extent that acertain modal logic is logicallyimplicit in Russell's thinking." All of which goes without saying, but it simply delays the inevitable question: when is a modal logic logicallyimplicit in a text? Dejnozka's current answer: a modal logic is logically implicit in a text when the text logically implies the paraphrase.2 But the final suggestion is incoherent, since we cannot tell what a text logical1y implies until we have discerned its logicalform-i.e. until we havealready paraphrased it into some formal idiom or other. A related problem is that Dejnozka consistently failsto distinguish two sorts of claims: • Certain passagesin Russell lend themselves to a modal interpretationthey can be captured in a given system of modal logic, e.g. S13. • Such an interpretation reflects Russell'sintentions. That a modal system captures one or another of Russell's accounts of logical truth in itself entails nothing regarding Russell'sintentions. The modal system G described by George Boolos in a munber of publications provides an alterna- ' "Russell's Modal Logic?", Russelin.s. 20 (2000): 165-72. 2 "Reply to Ostertag", Russell, n.s. 21 (2001): 63-5 (at 65). Discussion 67 rive formalization of Peano Arithmetic, enabling the derivation of Godel's incompleteness theorems. Yet the fact that this is possible does not in any way suggest that Godel himself was implicitly committed to G. Unfortunately, Dejnozka often writes as if the mere possibility of a modal interpretation is genuinely revealing as to Russell's intemions. Bm it is just as implausible to maintain this as it is to claim that it was Gi:idel'sintention to present Boolos's G.3 Second, as I maintain in my review, Dejnozka fails to take seriously the many comexts in which Russell is explicitly critical of modality. Dejnozka responds that he has quoted these very passagesand that he "embraces them as half-but only half-of [his] basic message" ("Reply", p. 64). But citing contexts in which Russell appears to find modality congenial does nothing to mitigate the force of the contexts in which Russell explicitly repudiates modality. It is Dejnozka's responsibility to explain how the latter are to cohere with his interpretation. To avoid this issue is to skirt the real philosophical and interpretive challenge that the project entails. Finally, we come to Dejnozka's confusions surrounding MDL-the triad of equivalences that underwrite the interpretation of Principiaas a modal logic. In light of Dejnozka's steadfast refusal to formalize the various modal systems he amibmes to Russell, it hardly makes a differencewhether MDLis a modal logic or merely, to use his terminology, a "modal theory" (assuming that the latter ultimately amounts to something other than a modal logic).4What is importam is whether MDLis trivial. If it is, then it is quite beside the point to pursue the various extensions of MDL.Since I maimain that Russell is not commined, implicitly or otherwise, to a substantive reading of MDL-one in which the modal operators have their conventional meanings-then he is not committed to these extensions, so there is no need for detailed discussion. What remains central is my argtunent for the claim that MDL is trivial. Bm this argmnent (unacknowledged by Dejnozka) is there for... (shrink)

In lieu of an abstract, here is a brief excerpt of the content:Photo-credit to Chicago Sun-Times and James Mescall. 4 "The town is beastly and the weather was vile": Bertrand Russell in Chicago, 1938-1939 Visiting Chicago in 1867, Lord Amberley offered his wife an appreciation of the city: "The country around Chicago is flat and ugly; the town itself has good buildings but has a rough unfinished appearance which does not contribute to its attractions."l While Bertrand Russell is (...) known to have accepted and developed particular aspects of his father's thought, it is more likely that his own visits to Chicago, rather than this nineteenth -century appraisal, brought him to the opinion that "the town is beastly and the weather was vile."z One might suppose Russell's longest stay reaffirmed his image of the city suggested in a 1922 article expressing fear of "a slow destruction of the civilization of China" through which "the big towns will become like Chicago."3 Here, Russell appears to have envisioned this city as an amorphous collection of streets and structures manifesting the least desirable values of American capitalism. In his Autobiography a single paragraph is devoted to his 1938-1939 experience of "the bleak hideousness of Chicago" (II, p. 332). Yet there was far more to Russell's six-month sojourn than the little he chose to recall in print. One-half year is a significant period in anyone's life, even for a man who lived ninety-seven (and a half) years. This article, then, presents an account of Russell's coming to and departure from Chicago and his diverse activities while a professor at the University of Chicago. The need to secure some permanent academic position was strongly felt by Russell in the mid-1930s. His ~aertrand and Patricia Russell, The Amberley Papers (London: Allen and Unwin, 1966), p. 57. zThe Autobiography of Bertrand Russell (Boston: Atlantic-Little, Brown, 1968), II, p. 332. 3"How Washington Can Help China", New Republic, 4 Jan. 1922, p. 154. / 5 second marriage had ended and a third was beginn~ng; ~ar­ ticipation in the Beacon Hill experimen~ w~s behlnd hlmj and journalistic writing, though ~ contlnulng so~rce of income, was ceasing to be attractlve: No~ a d~slre to return to philosophical work, recurrlng fl~anclal troubles, and the fear of another, far m~r~ destr~ctlve.European~ar all contributed toward his declslon to lnvestlgate Amerlcan possibilities. My feelings are threefold: (a) I' have a lot of ideas in,my head that I long to work at and believe important (b) I am faced with such poverty that I may be unable to give a proper education to the child that is coming (c) That Europe is no place for children with the imminent risk of war--particularly England, which is ' 4 likely to suffer most in the next war. At first, with the help of his American publisher, Warder Norton, Russell approached Princeton University hoping for a research post "on the foundations of mathematics and philosophy" (letter to Norton, 13 Jan. 1937). But no prospect materialized, and he requested Norton to inquire at universities such as Columbia and Harvard. Finally in the spring of 1937 Russell received a letter from Professor Scott Buchanan who then represented the University of Chicago's Committee on the Liberal Arts (COTLA). Buchanan offered a place on COTLA with only minor teaching duties. Writing to Norton that this "seems a very agreeable job", Russell nevertheless suggested the post "may be reactionary and the sort of thing my radical friends would think I ought not to be connected with. '" it is a committee concerned with a conservative reform of education." But the invitation promised adequate time for independent research, and Russell, quite characteristically, concluded "my wish is to accept, but not if doing so would be wicked" (letter of 30 Apr. 1937). However, Buchanan, having soon thereafter left the University of Chicago for a Maryland college, corresponded no further with Russell. The COTLA job offer was officially withdrawn. Only in January 1938 did Russell again hear from a University of Chicago spokesman. Aware that Russell had been somewhat brusquely treated, Professor Richard P. McKeon of the Department of Philosophy now wrote "in the... (shrink)

Russell maintained that a person can have knowledge about a particular only if he is acquainted with some particular. In a similar vein, Chisholm has argued that a person cannot identify a particular unless he identifies some particular per se. According to Chisholm, a person identifies a particular per se just in casehe has knowledge of its haecceity or individml essence. Chisholni urges us to accept the following controversial claim concerning haecceities: none of us has knowledge of the haecceity (...) of a particular physical object or person, x, when he perceives x by means of his senses, and picks x out as that thing. However, Chisholm does not offer a compelling argument to support this claim. In this paper I aim to show that Chisholm's claim is fundamentally correct. (shrink)

The excellent quality and depth of the various essays make [the book] an invaluable resource....It is likely to become essential reading in its field.—CHOICE.

This chapter examines Russell’s appreciation of the relevance of psychology for the theory of knowledge, especially in connection with the problem of the external world, and the background for this appreciation in British philosophy of the eighteenth and nineteenth centuries. Russell wrote in 1914 that “the epistemological order of deduction includes both logical and psychological considerations.” Indeed, the notion of what is “psychologically derivative” played a crucial role in his epistemological analysis from this time. His epistemological discussions engage (...) psychological factors in the perception of external objects that had been closely examined in the nineteenth century, among other places in J. S. Mill’s response to William Hamilton’s conception of knowledge of the external world. These considerations came to Russell in various ways, including his contact with British Empiricism (Mill, with Berkeley, Hume, and Reid as background), his engagement with Austrian philosophy, his close acquaintance with the philosophy and psychology of William James, and his exposure to contemporary British writings concerning the problem of the external world. The latter writings provide a crucial context within which natural scientific psychology came to be seen as distinct from epistemology and yet as relevant to its concerns. (shrink)

Analytic philosophy arose in the early decades of the twentieth century, with Bertrand Russell and G. E. Moore leading the way. Although some accounts emphasize the role of logic and language in the origin of analytic philosophy, of equal importance is the theme of perception, sense data, and knowledge, which dominated systematic philosophical discussion in the first two decades of the twentieth century in both Britain and America. This chapter examines work on perception and sense data as well as (...) the external world in the analytic tradition in the first half of the twentieth century. After sketching the situation before and just after 1900, it turns to Moore, Russell, and their interlocutors in the teens and twenties, addresses the American scene, looks to subsequent developments in the 1930s and beyond, and finally considers the fates of sense data and the ‘given’ and of the topic of perception more generally. (shrink)

© 2013 The Editors of The Philosophical QuarterlyMany moons ago, Bertrand Russell thought of reference in epistemic terms: to mean an object—to refer to it—one had to be acquainted with it; for it is ‘scarcely conceivable’ that one should judge without knowing what one is judging about. The rest of the relation between language and the world is conceived as denoting, a feature of linguistic expressions and bits of the world which crucially holds or fails to hold without affecting (...) the reference or meaning of those expressions. Since acquaintance is here explained as epistemically fundamental—if one is acquainted with something then one cannot be mistaken about either the existence or the identity of the thing—he was led to posit sense‐data as the only individuals we genuinely refer to. For various reasons, the last part has not since proven popular, but the idea of acquaintance remained standing. It seems... (shrink)

Peter Pagin: Indeterminacy of Translation: We discuss the content of the indeterminacy thesis, Quine's arguments for it and his associated behaviorism, consequences of the thesis, and some objections against it.

Philosophy of language explores some of the fundamental yet most technical problems in philosophy, such as meaning and reference, semantics, and propositional attitudes. Some of its greatest exponents, including Gottlob Frege, Ludwig Wittgenstein and Bertrand Russell are amongst the major figures in the history of philosophy. In this clear and carefully structured introduction to the subject Gary Kemp explains the following key topics: the basic nature of philosophy of language and its historical development early arguments concerning the role (...) of meaning, including cognitive meaning vs expressivism, context and compositionality Frege’s arguments concerning sense and reference; non-existent objects Russell and the theory of definite descriptions modern theories including Kripke and Putnam; arguments concerning necessity, analyticity and natural kind terms indexicality, context and modality. What are indexicals? Davidson’s theory of language and the ‘principle of charity’ propositional attitudes Quine’s naturalism and its consequences for philosophy of language. Chapter summaries, annotated further reading and a glossary make this an indispensable introduction to those teaching philosophy of language and will be particularly useful for students coming to the subject for the first time. (shrink)

Review of Erik C. Banks, The Realistic Empiricism of Mach, James, and Russell: Neutral Monism Reconceived.

The first two sections of the paper characterize the nineteenth century respect for the phenomenal by considering Helmholtz’s position and James’ and Russell’s move to neutral monism. The third section displays a moment’s sympathy with those who recoiled from the latter view -- but only a moment’s. The recoil overshot what was a reasonable response, and denied the reality of the phenomenal, largely in the name of the physical or the material. The final two sections of the paper develop (...) a third way, which retains a healthy respect for the mental and for the mind–body relation, does not attempt to equate objects with congeries of sensations, and does not attempt to deny the reality of the phenomenal. In fact, I will claim that on some conceptions (and not merely idealist-phenomenalist conceptions), the phenomenal is a fact of nature, and hence a part of the natural world. Some aspects of this third way are familiar in the various representational and critical realisms of the twentieth-century. But the realization -- or, more neutrally, the conception -- that the natural might include the phenomenal is less familiar. Yet this position has its predecessors too, not only among the physicists and psychologists of the nineteenth century, but among major physicists (as opposed to physicalist philosophers) and psychologists of the twentieth. [A re-edited version of this paper appears in Gary Hatfield, Perception and Cognition: Essays in the Philosophy of Psychology, Clarendon Press, 2009.]. (shrink)

ABSTRACTJason Wirth's Mountains, Rivers, and the Great Earth: Reading Gary Snyder and Dōgen in an Age of Ecological Crisis challenges complacency in two significant ways. First, it performs a commitment to philosophy as creative and capacious practice in contrast to orthodoxies or technical provincialisms. Second, it disrupts unreflective usages of “wealth” and “development” as inherently economic in developing a compelling argument about the way that spiritual poverty informs contemporary ecological pathology. In this review, I present six key claims in (...) Wirth's text and offer unfolding thoughts in response. (shrink)

Bertrand Russell's theory of definite descriptions sparked an ongoing debate concerning the proper logical and linguistic analysis of definite descriptions. While it is now widely acknowledged that, like the indexical expressions 'I', 'here', and 'now', definite descriptions in natural language are context-sensitive, there is significant disagreement as to the ultimate challenge this context-sensitivity poses to Russell's theory.This reader is intended both to introduce students to the philosophy of language via the theory of descriptions, and to provide scholars in (...) analytic philosophy with ready access to some of the central contributions in this area. It includes classic works by Russell, Carnap, Strawson, Lambert, Donnellan, Grice, Peacocke, Kripke, Wettstein, Soames, Neale, and Schiffer. (shrink)

Richard Rorty was an analytic philosopher, in the sense that his work is an important moment in the historical development that began with Russell, Wittgenstein, and the Vienna circle; continued through Quine, Sellars, and Davidson. In his "Intellectual Autobiography" Rorty notes that his work depended particularly that of Wittgenstein, Sellars, Davidson, and Brandom, who in turn required an understanding of the analytic philosophers they reacted against: Russell, Carnap, and Ayer. According to Rorty, twentieth‐century philosophy that emphasized rigor and (...) scientificity accepted this modern view of philosophy. This included phenomenology as practiced by Husserl and, especially, analytic philosophy. Rorty's clearest and most detailed presentation of his metaphilosophy, the introduction to Consequences of Pragmatism. Rorty's response to both lines of realist criticism is that pragmatism does not hold any theory of truth and instead maintains that there is no useful purpose served by constructing such theories – as two millennia of philosophy amply illustrate. (shrink)

This chapter considers the development of experimental psychology as a distinct discipline from philosophy, a result that arrived more slowly in Britain than in Germany or the United States. The chapter first considers more closely the question of what it means to chart the ‘emergence’ of psychology as a separate discipline. It finds that the usual criteria applied by historians of psychologh, that a discipline arises through institutional structures such as professorships (a specialist career path), journals, and professional socieites, does (...) not fit the British scene. It then surveys some actors’ taxonomies of psychological trends or schools in Britain, looking back from the first quarter of the twentieth century. Finally, it examines connections between philosophy and psychology in the decades surrounding the turn of the twentieth century, involving the problem of the external world and the use of psychology in epistemology. (shrink)

A common objection to Russell's theory of descriptions concerns incomplete definite descriptions: uses of (for example) ‘the book is overdue’ in contexts where there is clearly more than one book. Many contemporary Russellians hold that such utterances will invariably convey a contextually determined complete proposition, for example, that the book in your briefcase is overdue. But according to the objection this gets things wrong: typically, when a speaker utters such a sentence, no facts about the context or the speaker's (...) communicative intentions single out a particular description-theoretic proposition as the proposition expressed. However, this is an objection only if it is assumed that successful linguistic communication requires the hearer to identify a proposition uniquely intended by the speaker. We argue that this assumption is mistaken. On our view, no proposition, descriptive or referential, is uniquely intended in such a context; thus, no proposition can nor need be identified as the proposition expressed. One significant upshot is that, once the aforementioned assumption is rejected, incompleteness no longer poses a threat to Russell's theory of descriptions. (shrink)

This study offers a new account of the development of Cartesian Occasionalism. The doctrine of Occasionalism - most famously advocated by Nicolas Malebranche - states that God alone is the cause of every event, and created substances are merely "occasional causes." In the years following René Descartes' death in 1650, several of his followers -- including Arnold Geulincx, Gerauld de Cordemoy and Louis de la Forge - argued for some version of this thesis. My study builds on recent scholarship about (...) these first Cartesian Occasionalists, the motives that led them and Malebranche to adopt Occasionalism, and the connections between Occasionalism and the views of Descartes. I analyze the doctrine of Occasionalism, and examine its relationship to Descartes' philosophy. I argue that Descartes' views in physics and metaphysics are consistent with the claim that corporeal substances have intrinsic causal powers, and reply to arguments by Gary Hatfield, Janet Broughton and Daniel Garber that purport to show otherwise. I examine how Occasionalism relates to several proposed problems with Descartes' claim that the human mind causally interacts with the human body, and argue that Occasionalism is not the "natural" solution to these problems. I conclude by canvassing the arguments of the earliest Cartesian Occasionalists. I argue Cartesian Occasionalism was neither an ad hoc solution to the mindbody problem, nor a logical consequence of Descartes' own views, but rather an attempt to extend and better systematize Cartesian philosophy. (shrink)

In their efforts to uncover the principles of a robust conception of democracy, theorists of deliberative democracy place a premium on the role of political expression—public speech and reasoned debate—as the key to democratic processes. They also frequently hark back to historical antecedents in their quest to establish that deliberative procedures are more than “merely theoretical” and instead have a practical application. But for all this emphasis on the discursive and historical dimensions of democracy, these theorists have generally neglected the (...) rich resources available in the history of rhetorical theory and practice. It is the purpose of _Talking Democracy_ to resurrect this history and show how attention to rhetoric can help lead to a better understanding of both the strengths and limitations of current theories of deliberative democracy. Contributors, besides the editors, are Russell Bentley, Tsae Lan Lee Dow, Tom Murphy, Arlene Saxonhouse, Gary Shiffman, John Uhr, Nadia Urbinati, John von Heyking, and Douglas Walton. (shrink)

Michael McKenna’s Conversation and Responsibility is an ambitious and impressive statement of a new theory of moral responsibility. McKenna’s approach builds upon the strategy advanced in P.F. Strawson’s enormously influential “Freedom and Resentment” (which was published in 1962). The account advanced aims to provide Strawson’s theory with the sort of detail that is required to fill significant gaps and respond to a wide range of criticisms and objections that have been directed against it. ....Conversation and Responsibility belongs on the top (...) shelf of any set of readings devoted to the contemporary discussion of moral responsibility. All readers, whatever their philosophical orientation may be, will find it both challenging and rewarding. Whether in the end one endorses the conversational model or not, there can be no doubt that this is a contribution that significantly advances our overall understanding of these important and complex matters. (shrink)

Multiple Originals: New Approaches to Hebrew Bible Textual Criticism. By Gary D. Martin. SBL Text-Critical Studies, vol. 7. Atlanta: Society of Biblical Literature, 2010. Pp. xiv + 341. $42.95.

Many contemporary atheists find support in what they take to be the methodology and findings of science. In response to this, it is often suggested that these atheists are wrong‐headed, and that religion and science are completely compatible. It is often claimed by critics that the widespread acceptance of philosophical naturalism by scientifically informed people results from a simple mistake. Evolutionary theory is best regarded as a sort of atheistic religion. This myth crops up frequently, as does the idea that (...) evolutionary theory is inherently antireligious. The essentials of contemporary evolutionary theory are robust—they have so much empirical support that they are almost certainly true. Miracles are the subject of endless popular debate between religious apologists and religious skeptics, and there is a more specialized academic debate about this in philosophical journals. (shrink)

The qigong state of bigu is believed to be supported by the absorption of qi from the universe. Gamma radiation is ubiquitous in the cosmos and, according to some, may be a possible source of energy for cellular functioning. When the concept of energy is integrated with the concept of dynamical systems, the logic leads to the theory—termed systemic memory—that predicts all systems, from the micro to macro, store information and energy to various degrees. New research indicates that the human (...) body absorbs gamma radiation from the environment and emits high-frequency X rays. There are substantial individual differences in these effects that appear to be related, in part, to the psychological state of the person. Future research can determine if bigu is associated with increased absorption of gamma radiation and/or decreased emission of high frequency X rays. The hypothesis that qi can be viewed as quality information is proposed. (shrink)

This essay is an exposition and analysis of the contrast Michel Foucault draws in "The History of Sexuality Vol. 1", between an outmoded conception of power as negatively restraining and his notion of power as productive, ubiquitous, and strategically dynamic. In "The Order of Things", Foucault had already shown how the locus of sovereignty changes in the "classical age" without either its structure being called into question or its theoretical warrant being exhibited. But he shows this by utilizing the term (...) "sovereignty" himself in all its richness and ambiguity. Contrasting his use of "sovereignty" with his more radical notion of fragmentary and inescapable "power," the essay concludes by arguing that at issue here is not the preemptive self-control of critical theory but normalizing interventions in the domain of everyday behaviors and practices. (shrink)

How do middle-class Americans become aware of distant social problems and act against them? US colleges, congregations, and seminaries increasingly promote immersion travel as a way to bridge global distance, produce empathy, and increase global awareness. But does it? Drawing from a mixed methods study of a progressive, religious immersion travel organization at the US-Mexico border, Empathy Beyond US Borders provides a broad sociological context for the rise of immersion travel as a form of transnational civic engagement. Gary J. (...) Adler, Jr follows alongside immersion travelers as they meet undocumented immigrants, walk desert trails, and witness deportations. His close observations combine with interviews and surveys to evaluate the potential of this civic action, while developing theory about culture, empathy, and progressive religion in transnational civic life. This timely book describes the moralization of travel, the organizational challenges of transnational engagement, and the difficulty of feeling transformed but not knowing how to help. (shrink)

This review article responds to a biography of Fichte and a collection of essays on German Idealism stressing the plurality of types of idealism that were presented at the close of the 18th and the beginning of the 19th century.

Full-text of this article is not available in this e-prints service. This article was originally published following peer-review in British Journal for the History of Philosophy, published by and copyright Routledge.

In this paper, I present a modal system called ∏ (Pi), characterizing it both axiomatically and algebraically, the latter being in terms of structures called π-algebras (pi-algebras). Pi-algebras are a natural generalization of Boolean algebras with operators – a generalization in which equality is replaced by congruence in the characterizing conditions. The resulting system of modal logic is "sub- Lewis", in the sense that it is properly contained in the weakest Lewis system, S1.