1,783 research outputs found
Cut-elimination, substitution and normalisation
No full textDate of Acceptance: 01/2015We present a proof (of the main parts of which there is a formal version, checked with the Isabelle proof assistant) that, for a G3-style calculus covering all of intuitionistic zero-order logic, with an associated term calculus, and with a particular strongly normalising and confluent system of cut-reduction rules, every reduction step has, as its natural deduction translation, a sequence of zero or more reduction steps (detour reductions, permutation reductions or simplifications). This complements and (we believe) clarifies earlier work by (e.g.) Zucker and Pottinger on a question raised in 1971 by Kreisel.Peer reviewe
LEER A NELLY ARCAN A TRAVÉS DE LA LENTE DE ISABELLE FORTIER
No full textNelly Arcan, sous son vrai nom d’Isabelle Fortier, a rédigé un mémoire de maîtrise
en études littéraires d’orientation psychanalytique (2003). À l’exception de quelques
mentions ici et là au sein de textes savants, aucune étude n’a jusqu’à maintenant analysé
l’oeuvre littéraire de Nelly Arcan à partir de la réflexion théorique qui se déploie dans ce
mémoire intitulé « Le poids des mots ou la matérialité du langage dans Les mémoires d’un
névropathe de Daniel Paul Schreber ». Or, les ponts sont nombreux. Le délire de
Schreber, consigné dans ses mémoires, est conçu par Fortier comme une tentative « d’empêcher
la collusion définitive » vers laquelle l’homme se sent aspiré, une tentative d’« implanter
un ordre signifiant pouvant soutenir le sujet » (2003, 21). Ce délire, qui apparaît ainsi
comme un moyen de défense contre la psychose, est étudié par elle au plus près de son
langage. Si le discours de Schreber n’a pas de visée poétique, il en va tout autrement de
l’écriture d’Arcan dans Putain qui, si elle avance à un rythme qui rappelle la
parole délirante, n’en est pas moins une riche construction poétique dont on peut analyser
les ressorts. Cet article apporte un éclairage inédit sur le roman Putain de Nelly
Arcan en dévoilant les liens poétiques étroits qu’il entretient avec le délire de
Schreber.Nelly Arcan, under her real name, Isabelle Fortier, wrote a thesis for a Master’s
degree in psychoanalytically-oriented literary studies (2003). With the exception of a few
references here and there in academic articles, there has been no analysis until now of
Nelly Arcan’s work other than in the theoretical consideration that is laid out in that
thesis entitled “Le poids des mots ou la matérialité du langage dans Les mémoires d’un
névropathe de Daniel Paul Schreber.” Nevertheless, there are many connections.
Schreber’s delirium, recorded in his memoirs, is designed by Fortier as an attempt “to
prevent the definitive collusion” which man feels drawn to, an attempt to “establish a
signifying order capable of supporting the subject” (2003, 21). This delirium, that thus
appears as a defense mechanism against psychosis, is studied closely by her in terms of its
language. If there are no poetic aims in Schreber’s dialogue, quite the opposite is apparent
in Arcan’s writing in Putain which, even if it proceeds at a rhythm reminiscent of
delirious speech, is nonetheless a rich poetic construction whose inner workings can be
analyzed. This article sheds new light on Nelly Arcan’s novel Putain by unveiling
the direct poetic connections that it maintains with Schreber’s delirium.Nelly Arcan, redactó una tesis de maestría en estudios literarios de orientación
psicoanalítica (2003) utilizando su verdadero nombre, Isabelle Fortier. Salvo ciertas
menciones aquí en algunos textos académicos, ningún estudio ha analizado hasta ahora la obra
literaria de Nelly Arcan a partir de la reflexión teórica que se despliega en esta tesis
titulada "Le poids des mots ou la matérialité du langage dans Les mémoires d’un
névropathe de Daniel Paul Schreber” (El peso de las palabras o la materialidad del
lenguaje en las Memorias de un neurópata de Daniel Paul Schreber). Sin embargo, hay muchos
puentes. Fortier concibe el delirio de Schreber, registrado en sus memorias, como un intento
de "impedir la colusión definitiva" hacia la que el hombre se siente arrastrado, un intento
de "implantar un orden representativo que pueda sostener al sujeto" (2003, 21). Este
delirio, que aparece además como un medio de defensa contra la psicosis, ella lo estudia
acercándose lo más posible a su lenguaje. Si el relato de Schreber carece de objetivo
poético, no puede decirse lo mismo de la escritura de Arcan en Putain (Puta), que,
si bien avanza a un ritmo que recuerda el discurso delirante, no deja de ser una rica
construcción poética en la que se pueden analizar los recursos. Este artículo aporta una
nueva visión de la novela Putain (Puta) de Nelly Arcan al revelar los estrechos
vínculos poéticos que mantiene con el delirio de Schreber
I remember teaching English at Seabrook
No full textIn this "I remember" memoir, Isabell Waugh, a former teacher at Seabrook, compares and constrasts the different groups of students she taught. She remembers that native-born American teenagers tended to be more concerned with athletics and social activities, than academic matters. In comparison, Estonian and Japanese parents did not tolerate low academic performance, so students from the two groups often competed intensely with each other for academic achievement and recognition. Isabelle recalls that the Estonians were, in general, more sophisticated and better educated. Most of the children knew 3-5 languages, and were more advanced in math and science. She sensed that some Estonian parents felt that their homes at Seabrook were temporary, and that they would be returning to Estonia at some point. The Seabrook Educational and Cultural Center has been soliciting current and past residents of Seabrook Farms for an "I remember" project. Residents are asked to create narratives regarding their experiences at Seabrook Farms. These memories help preserve the history and multi-cultural heritage of Seabrook Farms
Isabelle Bell to Susan Niemcewicz, December 23, 1800
No full textIsabelle Bell wrote to Susan U. Niemcewicz in Elizabethtown, New Jersey. Bell expressed her disappointment in not receiving a line from Susan. She sent Bell Lucretia Rephans subscription epistle, but Susan refrained from writing a letter to her. Bell did not execute any of Susan’s commissions in New York because her time there was short. Miss Resham heard that Mr. B Livingston told his sister, Mrs. J. Livingston that he would offer Bell a salary to live in his house and take charge of his children’s education. Asked if Susan what she thought of her being an author and if Susan would subscribe to a small volume that may have the good fortune to rival the poems of the immortal Scarron.https://digitalcommons.kean.edu/lhc_1800s/1143/thumbnail.jp
Interviews with Carl T. Bode, Isabelle Fritschen, Joseph H. Hirt, Mary G. Hirt, and Minnie Campbell
No full textInterviews with Carl T. Bode, Isabelle Fritschen, Joseph H. Hirt, Mary G. Hirt, and Minnie Campbell. The recording includes a variety of German-language songs. The last half of the recording is dedicated to Minnie Campbell telling about her time working for Mother Bickerdyke. The first few minutes of the recording are missing. 00:00:13 - Song, The Messenger Bird sung by Joseph H. Hirt and translated by Isabelle Fritschen 00:01:35 - Song, Birdie in the Window, sung by Mary Gertrude Hirt 00:02:59 - Story of Peter John Thielen\u27s experience in the Franco-Prussian War told by Joseph Hirt 00:05:27 - Grandfather\u27s experience with wild cattle told by Isabelle Fritschen 00:07:31 - Carl T. Bode introduction 00:08:46 - Nursery rhyme about hands 00:09:09 - The Cuckoo and the Donkey 00:09:42 - Sleep Baby Sleep 00:10:24 - Golden Evening Sun 00:11:00 - Beautiful Moon 00:12:10 - My Homeland 00:13:50 - Minnie Campbell Introduction 00:14:05 - Experiences as Mother Bickerdyke\u27s secretary 00:14:35 - Mother Bickerdyke\u27s 81st birthday celebration in Bunker Hill, KS 00:19:59 - Mother Bickerdyke\u27s portrait 00:23:55 - How Lydia Foster, Mother Bickerdyke\u27s Black maid came to live with her. 00:26:34 - Mother Bickerdyke\u27s death 00:29:34 - Mother Bickerdyke\u27s burial in Galesburg, Illinois 00:30:28 - Working for Mother Bickerdyke 00:34:01 - Going to School as a student of James Bickerdyke, Mother Bickerdyke\u27s son 00:35:26 - Decline of Bunker Hill, KS 00:37:15 - Russell stealing the county seat from Bunker Hill 00:38:09 - Closing of the Dorrance, KS bank 00:39:00 - Mother Bickerdyke\u27s personality 00:42:34 - Experience with Nina Brown Baker author of Cyclone in Calico 00:48:24 - Mother Bickerdyke Home for Widows and Children in Ellsworth, KS 00:51:13 - Post scripthttps://scholars.fhsu.edu/sackett/1014/thumbnail.jp
Central interference and psychological refractory period: Effects of visual spatial attention mechanisms distinguishing target and distractor processing
No full textWe studied the interaction between the control mechanisms subserving spatial attention and central attention using the psychological refractory period (PRP) paradigm. Two stimuli, a pure tone (T1) and a circular
visual array (T2), including a salient target and a salient distractor, were presented at varying stimulus onset asynchronies, each requiring a speeded response. Target-specific and distractor-specific lateralized event-related potentials were isolated by placing one of them at a lateral position and the other on the vertical midline. As SOA was decreased, a progressive reduction and postponement of a T2-locked N2pc component
was observed with a lateral target and a central distractor. No lateralized potentials were associated with a lateral distractor and a central target. The sustained posterior contralateral negativity (SPCN) was observed independently of SOA modulation, only with a lateral target. We also observed an earlier positive deflection, the Ppc (positivity posterior contralateral), that was contralateral to both lateral targets and distractors,
whose amplitude and latency were not affected by SOA variations. We conclude that central processing interferes specifically with target processing reflected by the N2pc and SPCN. We propose that the Ppc
reflects an initial, bottom-up response to the presence of a salient stimulus, whereas the N2pc and SPCN reflect the controlled deployment of spatial attention to targets and maintenance of target information in visual short-term memory, respectively
Delayed deployment of visual attention to the second target in the attentional blink: Evidence from human electrophysiology
No full textThis article explores the time course of the functional interplay between detection and encoding stages of information processing in the brain and the role they play in conscious visual perception. We employed a multitarget rapid serial visual presentation (RSVP) approach and examined the electrophysiological P3 component elicited by a target terminating an RSVP sequence. Target-locked P3 activity was detected both at frontal
and parietal recording sites and an independent component analysis confirmed the presence of two distinct P3 components. The posterior P3b varied with intertarget lag, with diminished amplitude and postponed latency at short relative to long lags—an electroencephalographic signature of the attentional blink (AB). Under analogous conditions, the anterior P3a was also reduced in amplitude but did not vary in latency. Collectively, the results provide an electrophysiological record of the interaction between frontal and posterior components linked to
detection (P3a) and encoding (P3b) of visual information. Our findings suggest that, although the AB delays target encoding into working memory, it does not slow down detection of a target but instead reduces the efficacy of this process. A functional characterization of P3a in attentive tasks is discussed with reference
to current models of the AB phenomenon
N2pc modulations reveal a local filtering mechanism in the human brain
No full textThere is considerable evidence linking the N2pc event-related lateralized response with processing of lateral visual targets, usually presented in the presence of visual distractors. It has proven challenging determine to what extent the N2pc reflects mechanisms of target selection versus possible mechanisms of distractor suppression. We present new evidence that is difficult to reconcile both with the distractor-suppression account of the N2pc (which predicts an increase in the amplitude of N2pc in the presence of distractors) and with the finding that N2pc is modulated by the distance between competing stimuli (N2pc is reduced as distance is reduced). In this talk we present new evidence suggesting a mechanism operating on a local spatial scale that can filter out salient distractors, leading to a reduced N2pc, but only under some conditions. The results are
discussed in the context of extant models of attention mechanisms leading to the N2pc component
Formalization of Isabelle Meta Logic in NuPRL
No full textNuPRL and Isabelle are two general purpose theorem provers. Both of them are based on a version of Constructive Higher Order Type Theory. In an earlier work the author has proposed an informal semantics of Isabelle Meta Logic in an extension of NuPRL Type Theory. An automated converter, based on this semantics, has been developed, that translates Isabelle theorem statements into NuPRL. This work presents a formalization of the above semantics in NuPRL. It starts with a deep embedding of Isabelle type and term syntax into NuPRL Constructive Type Theory. Next, two internal NuPRL functions are defined. One of them maps Isabelle types into NuPRL types and the other maps Isabelle terms into elements of appropriate NuPRL types. These two functions provide an interpretation of Isabelle in NuPRL. Finally, interpretations of all Isabelle Meta Logic rules are proven as theorems in some classical extension of NuPRL Type Theory. This formalization is aimed to provide a more secure foundation for the interaction between two systems
Security modeling and correctness proof using Specware and Isabelle
No full textSecurity modeling is the foundation to formal verification which is a core requirement for high assurance systems. This thesis explores how security models can be built in a simple and expressive manner using the Metaslang specification language in Specware. The models are subsequently translated, via the Specware to Isabelle Interface, to be proven for correctness in Isabelle which is a generic, interactive theorem proving environment. It is found that the translation between Specware and Isabelle is almost seamless and there is much potential in the use of Isabelle/HOL to discharge proof obligations that arise in developing Specware specifications, although the actual proving requires substantial knowledge and experience in logical calculus.Approved for public release; distribution is unlimited.Outstanding ThesisSingapore ST Electronics Ltd. author (civilian).http://archive.org/details/securitymodeling10945383
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