6,563 research outputs found

    Definite Reference Mutability

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    Reference immutability type systems such as Javari and ReIm ensure that a given reference cannot be used to mutate the referenced object. These systems are conservative in the sense that a mutable reference may be mutable due to approximation. In this paper, we present ReM (for definite Re[ference] M[utability]). It separates mutable references into (1) definitely mutable, and (2) maybe mutable, i.e., references whose mutability is due to inherent approximation. In addition, we propose a CFL-reachability system for reference immutability, and prove that it is equivalent to ReIm/ReM, thus building a novel framework for reasoning about correctness of reference immutability type systems. We have implemented ReM and applied it on a large benchmark suite. Our results show that approximately 86.5% of all mutable references are definitely mutable

    Definite Reference Mutability (Artifact)

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    Related paper "Definite Reference Mutability" presents ReM (Re[ference] M[utability]), a type system that separates mutable references into (1) definitely mutable, and (2) maybe mutable, i.e., references whose mutability is due to inherent approximation. We have implemented ReM and applied it on a large benchmark suite. Results show that ~ 86% of mutable references are definitely mutable. This article describes the tool artifact from the related paper. The purpose of the article and artifact is to allow researchers to reproduce our results, as well as build new type systems upon our code

    A Participatory Universe of J. A. Wheeler as an Intentional Correlate of Embodied Subjects and an Example of Purposiveness in Physics

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    This paper investigates the role of human subjectivity and its delimiters in articulating the universe in physics and cosmology. As a case study, we reflect upon the complex of ideas of the so called Participatory Universe by later J. A. Wheeler. The objective of the paper is to explicate the role of the human agency as a centre of disclosure and manifestation of the universe as well the as teleology of scientific representation of the world implied by the intrinsic purposiveness of human actions.Comment: 22 pages, 1 figur

    Change and the Poetics of Plenitude in Wallace Stevens and John Ashbery

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    The essay attends to a paradox found in some crucial poetic efforts by Wallace Stevens and John Ashbery. In some of their most important poetic works Stevens and Ashbery take on the task of positioning the poem toward the plurality of reality, the plurality that is concentrated in the phenomenon of change. As they do so, they invariably encounter a tension within the poem itself: as the poem merges with the flow of changes in the external world-the physical changes in time and space-it also calls up permanent forms of imaginative purposive capability of attending to change, envisioning it, or, indeed, of installing it. These forms must be more permanent than it is postulated by some theories of the poetics of transitiveness, which are polemically discussed in the text. The tension between the element of change and permanence is what allows the poems of Stevens and Ashbery-each poet finding his own aesthetic and epistemic strategy-to put the poem forward not as an external “representation” of change, but as the very source of the abundant possibilities of producing world descriptions in which the notion of change may be meaningful. Such positioning of the poem is what I am calling “the poetics of plenitude.” This poetic strategy makes the poem an aesthetic counterpart to the epistemic action of developing an inquiry, and I am building a definition of this term by reference to the classical pragmatist theory of inquiry. This move is related to my treating Stevens and Ashbery as the poets belonging to the Emersonian-pragmatist intellectual and aesthetic tradition. The paradoxes of change and permanence discussed in the text are treated as inherent in this tradition

    Encoding Featherweight Java with Assignment and Immutability using The Coq Proof Assistant

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    We develop a mechanized proof of Featherweight Java with Assignment and Immutability in the Coq proof assistant. This is a step towards more machine-checked proofs of a non-trivial type system. We used object immutability close to that of IGJ [8]. We describe the challenges of the mechanization and the encoding we used inside of Coq. prover. Our Coq sources are publically available 1. Example. We define a parametrized class Cell, where the mutable instantiation can get and set the interned object, whereas the immutable instantiation can only get the interned object, provided initially in the constructor. We chose to use transitive mutability in this example. 1

    Complementary translation

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    Translatability, as an operative concept, offers a lot of consideration on fundamental issues. The present study focuses on a special approach in translation that is influenced by social bilingualism. The translator's bilingual competence sometimes leads to complementarity in sign and title translation. And complementary translation is viewed as dynamic equivalence.peer-reviewe

    Abject negotiations : the mutability of identification in selected artworks by Berni Searle

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    In this paper I offer a reading of South African artist, Berni Searle's works About to forget (2005) and On either side (2005) in relation to French psychoanalyst and theorist, Julia Kristeva's conception of abjection. In examining Searle's use of the formal elements of tactility in representations of her own corporeality, I draw analogies between Searle's work and two Kristevian theories of heterogeneity, namely abjection and the semiotic (see Pollock 1998:9). I analyse a selection of Searle's work, focusing on her references to tactile, semiotically-driven elements in her open-ended negotiations of self-identification. Particular emphasis is placed on how she uses abjection to evoke an ambiguous sense of self-identification within a South African context. Within this context, Searle suggests the borders of self hood to be fluid in nature. This correlates with Kristeva's model of self hood, or the speaking subject, in which identity is never fixed and is seen as being always in continuous negotiation. In this model, the abject threat of dissolution of self may be contextualised within the state off lux inherent in the understand­ing of the speaking subject. Therefore, the threat towards one's identity is not so much nullified, but is rather no longer 'other' or separated from the understanding of self. Following Kristeva's (1991:1) thought, one may argue that the foreign 'other' and the selfare intimately conjoined

    Rudolf Virchow. A Biographical Sketch.

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