746 research outputs found
Reality and continuity: Peirce and James
Thesis (M.A.)--Boston UniversityThe purpose of this thesis is to compare and contrast the thought of Charles Sanders Peirce and William James in two respects: (1) their ideas of reality and (2) their doctrines of the continuity of consciousness and its metaphysical implications.
Chapter II traces their different theories of reality to basic differences in their metaphysical orientations. Peirce, as a metaphysical realist, maintains that general terms refer to ideas and laws which are realities apart from the particulars which manifest them and the minds which apprehend them. The real correspondents of general terms are within two realms of being: the realm of first-ness, which is possibility and feeling; and the realm of thirdness, which is law, meaning, and thought, all of which are synonymous. Both differ from the world of existence, or secondness, in which possibility is actualized, and in which ideas, including laws, are physically and mentally operative. [TRUNCATED
Relations between logic and mathematics in the work of Benjamin and Charles S. Peirce.
Charles Peirce (1839-1914) was one of the most important logicians of the nineteenth century. This thesis traces the development of his algebraic logic from his early papers, with especial attention paid to the mathematical aspects. There are three main sources to consider.
1) Benjamin Peirce (1809-1880), Charles's father and also a leading American mathematician of his day, was an inspiration. His memoir Linear Associative Algebra (1870) is summarised and for the first time the algebraic structures behind its 169 algebras are analysed in depth.
2) Peirce's early papers on algebraic logic from the late 1860s were largely an attempt to expand and adapt George Boole's calculus, using a part/whole theory of classes and algebraic analogies concerning symbols, operations and equations to produce a method of deducing consequences from premises.
3) One of Peirce's main achievements was his work on the theory of relations, following in the pioneering footsteps of Augustus De Morgan. By linking the theory of relations to his post-Boolean algebraic logic, he solved many of the limitations that beset Boole's calculus. Peirce's seminal paper `Description of a Notation for the Logic of Relatives' (1870) is analysed in detail, with a new interpretation suggested for his mysterious process of logical differentiation.
Charles Peirce's later work up to the mid 1880s is then surveyed, both for its extended algebraic character and for its novel theory of quantification. The contributions of two of his students at the Johns Hopkins University, Oscar Mitchell and Christine Ladd-Franklin are traced, specifically with an analysis of their problem solving methods. The work of Peirce's successor Ernst Schröder is also reviewed, contrasting the differences and similarities between their logics.
During the 1890s and later, Charles Peirce turned to a diagrammatic representation and extension of his algebraic logic. The basic concepts of this topological twist are introduced. Although Peirce's work in logic has been studied by previous scholars, this thesis stresses to a new extent the mathematical aspects of his logic - in particular the algebraic background and methods, not only of Peirce but also of several of his contemporaries
Taking Ex nihilo seriously : ontology and providence in creation
EThOS - Electronic Theses Online ServiceGBUnited Kingdo
From icon to naturalised icon:a linguistic analysis of media representations of the BP Deepwater Horizon crisis
This research explores how news media reports construct representations of a business crisis through language. In an innovative approach to dealing with the vast pool of potentially relevant texts, media texts concerning the BP Deepwater Horizon oil spill are gathered from three different time points: immediately after the explosion in 2010, one year later in 2011 and again in 2012. The three sets of 'BP texts' are investigated using discourse analysis and semi-quantitative methods within a semiotic framework that gives an account of language at the semiotic levels of sign, code, mythical meaning and ideology. The research finds in the texts three discourses of representation concerning the crisis that show a movement from the ostensibly representational to the symbolic and conventional: a discourse of 'objective factuality', a discourse of 'positioning' and a discourse of 'redeployment'. This progression can be shown to have useful parallels with Peirce's sign classes of Icon, Index and Symbol, with their implied movement from a clear motivation by the Object (in this case the disaster events), to an arbitrary, socially-agreed connection. However, the naturalisation of signs, whereby ideologies are encoded in ways of speaking and writing that present them as 'taken for granted' is at its most complete when it is least discernible. The findings suggest that media coverage is likely to move on from symbolic representation to a new kind of iconicity, through a fourth discourse of 'naturalisation'. Here the representation turns back towards ostensible factuality or iconicity, to become the 'naturalised icon'. This work adds to the study of media representation a heuristic for understanding how the meaning-making of a news story progresses. It offers a detailed account of what the stages of this progression 'look like' linguistically, and suggests scope for future research into both language characteristics of phases and different news-reported phenomena
Goal driven theorem proving using conceptual graphs and Peirce logic
The thesis describes a rational reconstruction of Sowa's theory of Conceptual
Graphs. The reconstruction produces a theory with a firmer logical foundation than was
previously the case and which is suitable for computation whilst retaining the
expressiveness of the original theory. Also, several areas of incompleteness are
addressed. These mainly concern the scope of operations on conceptual graphs of
different types but include extensions for logics of higher orders than first order. An
important innovation is the placing of negation onto a sound representational basis.
A comparison of theorem proving techniques is made from which the principles of
theorem proving in Peirce logic are identified. As a result, a set of derived inference rules,
suitable for a goal driven approach to theorem proving, is developed from Peirce's beta
rules. These derived rules, the first of their kind for Peirce logic and conceptual graphs,
allow the development of a novel theorem proving approach which has some similarities
to a combined semantic tableau and resolution methodology. With this methodology it is
shown that a logically complete yet tractable system is possible. An important result is the
identification of domain independent heuristics which follow directly from the
methodology. In addition to the theorem prover, an efficient system for the detection of
selectional constraint violations is developed.
The proof techniques are used to build a working knowledge base system in Prolog
which can accept arbitrary statements represented by conceptual graphs and test their
semantic and logical consistency against a dynamic knowledge base. The same proof
techniques are used to find solutions to arbitrary queries. Since the system is logically
complete it can maintain the integrity of its knowledge base and answer queries in a fully
automated manner. Thus the system is completely declarative and does not require any
programming whatever by a user with the result that all interaction with a user is
conversational. Finally, the system is compared with other theorem proving systems
which are based upon Conceptual Graphs and conclusions about the effectiveness of the
methodology are drawn
The Algebra of Logic Tradition
The algebra of logic, as an explicit algebraic system showing the underlying mathematical structure of logic, was introduced by George Boole (1815-1864) in his book The Mathematical Analysis of Logic (1847). The methodology initiated by Boole was successfully continued in the 19th century in the work of William Stanley Jevons (1835-1882), Charles Sanders Peirce (1839-1914), Ernst Schröder (1841-1902), among many others, thereby establishing a tradition in (mathematical) logic. From Boole's first book until the influence after WWI of the monumental work Principia Mathematica (1910 1913) by Alfred North Whitehead (1861-1947) and Bertrand Russell (1872-1970), versions of thealgebra of logic were the most developed form of mathematical above allthrough Schröder's three volumes Vorlesungen über die Algebra der Logik(1890-1905). Furthermore, this tradition motivated the investigations of Leopold Löwenheim (1878-1957) that eventually gave rise to model theory. Inaddition, in 1941, Alfred Tarski (1901-1983) in his paper On the calculus of relations returned to Peirce's relation algebra as presented in Schröder's Algebra der Logik. The tradition of the algebra of logic played a key role in thenotion of Logic as Calculus as opposed to the notion of Logic as Universal Language . Beyond Tarski's algebra of relations, the influence of the algebraic tradition in logic can be found in other mathematical theories, such as category theory. However this influence lies outside the scope of this entry, which is divided into 10 sections.Fil: Burris, Stanley. University of Waterloo; CanadáFil: Legris, Javier. Consejo Nacional de Investigaciones CientÃficas y Técnicas. Oficina de Coordinación Administrativa Saavedra 15. Instituto Interdisciplinario de EconomÃa Politica de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Económicas. Instituto Interdisciplinario de EconomÃa Politica de Buenos Aires; Argentin
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A pragmatist: William Edward Burghardt DuBois.
This Master\u27s Thesis addresses the question, Was William Edward Burghardt DuBois a pragmatic philosopher in the strictest sense? In answering the question this writer has had to refer to the traditions of philosophic speculation as stated in coherence, correspondence, and pragmatic theories. The historical trends of past civilizations, which were brought to bear upon the conditions of economies and politics faced by the nations of the Renaissance period, and which lead directly to the New World slave trade of the fifteenth century, had to be examined. In addition the history of the Afro-American upon the North American continent had to be researched. The need to address these wide ranging areas is based upon my claim that the statement made in 1900, The problem of the twentieth century is the problem of the colorline, is DuBois\u27 evaluation of information gathered in studying periods of world civilizations. Western European societal growth, and the history of the Black man
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Mental and motor representation for music performance
This research proposes a theory of nonconscious motor representation which precedes mental representation of the outcome of motor actions in music performance. The music performer faces the problem of how to escape sedimented musical paradigms to produce novel configurations of dynamics, timing and tone colour. If the sound were mentally represented as an action goal prior to being produced, it would tend to be assimilated to a known action goal. The proposed theory is intended to account for creativity in music performance, but has implications in other areas for both creativity and motor actions.
The investigation began with an ethnographic study of two 'posthardcore' rock bands in London and Bristol. Posthardcore musicians work with minimal explicit knowledge of music theory and cognitive involvement in performance is actively eschewed. Serendipitous musical felicities in performance are valued. Such felicities depend on adjustment and fine control of dynamics, timing and tone colour within the parameters of the given.
A selective survey of music aesthetics shows that the defining qualities of music are the production of immanent rather than representational meaning; polysemy; and processuality. Taking an analytic philosophy and cognitive science approach, I argue that apprehensions of immanent meaning depend on relationships between proximal percepts within the specious present. A general argument for nonconceptual perceptual content as perception of relations between magnitudes within the specious present is extended to music and argued to account for both the polysemic richness of music and its processuality. Nonconceptual relational perception can account for novel apprehensions by music listeners, but not for the production of novel configurations by the performer. I argue that motor creativity in music performance is achieved through the nonconscious parameterization of inverse models without conscious representation of the goal of the action. Conscious representation for the performer occurs when they hear their own performance
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