1,704 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
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
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
Isabelle/DOF: Design and Implementation
No full textThis is the author accepted manuscript. The final version is available from Springer Verlag via the DOI in this record17th International Conference, SEFM 2019
Oslo, Norway, September 18–20, 2019DOF is a novel framework for defining ontologies and enforcing them during document development and evolution. A major goal of DOF is the integrated development of formal certification documents (e. g., for Common Criteria or CENELEC 50128) that require consistency across both formal and informal arguments. To support a consistent development of formal and informal parts of a document, we provide Isabelle/DOF, an implementation of DOF on top of the formal methods framework Isabelle/HOL. A particular emphasis is put on a deep integration into Isabelleâs IDE, which allows for smooth ontology development as well as immediate ontological feedback during the editing of a document. In this paper, we give an in-depth presentation of the design concepts of DOFâs Ontology Definition Language (ODL) and key aspects of the technology of its implementation. Isabelle/DOF is the first ontology language supporting machine-checked links between the formal and informal parts in an LCF-style interactive theorem proving environment. Sufficiently annotated, large documents can easily be developed collabo- ratively, while ensuring their consistency, and the impact of changes (in the formal and the semi-formal content) is tracked automatically.IRT SystemX, Paris-Saclay, Franc
La construction d'un monde professionnel : entrées des jeunes praticiens dans la médecine générale
No full textIsabelle Baszanger
The young general practitioners in the medical field.
Using interviews with young medical doctors (general practitioners) the author studies the ways they organize their empirical practice (as opposed to theoretical knowledge) and constructs a typology which caracterizes specific modes of professionnal socialization. This leads the author to evaluate the social dimensions of the role of general practitioners.La socialisation professionnelle des étudiants en médecine implique la formation d'un univers conceptuel qui est une sorte de compromis entre le savoir médical et la pratique quotidienne. A partir d'entretiens avec de jeunes médecins généralistes l'auteur a étudié comment les jeunes médecins organisent leur pratique et construit une typologie reflétant ces mécanismes particuliers de socialisation.
Cette analyse conduit l'auteur à s'interroger sur la dimension sociale du rôle du médecin généraliste telle qu'il la perçoit.Baszanger Isabelle. La construction d'un monde professionnel : entrées des jeunes praticiens dans la médecine générale. In: Sociologie du travail, 25ᵉ année n°3, Juillet-septembre 1983. pp. 275-294
Imperial Performativity: the Life, Transgressions, and Writings of Isabelle Eberhardt under the Lens of Queer Theory
No full textAn examination of Isabelle Eberhardt\u27s life and writings with regard to gender norms and imperialist expectations in French-controlled Algeria. The PDF includes the author\u27s entry submission essay for the 2011 Undergraduate Research Awards
China Saddle Up : An Ethnographic Study of the Recent Growth of Horse Riding by Beijing Horse Riding Clubs
No full textLa présente thèse porte sur l’apparition de l’équitation classique européenne en Chine contemporaine. L’essor récent des pratiques induit l’importation de matériels, chevaux et savoir-faire, avec notamment l’arrivée de professionnels européens dans les structures équestres. Par ailleurs, le recrutement de professionnels mongols a largement participé au développement des disciplines équestres sur le territoire. Porteurs de nouvelles normes équestres, leur recrutement traduit la volonté des structures de s'inscrire dans une pratique sportive internationale. À travers une recherche ethnographique menée dans plusieurs centres équestres à Pékin, cette étude s’intéresse aux cavaliers qu’ils soient professionnels ou amateurs, d’origine Han ou Mongole et à la manière dont ils s’emparent ou rejettent ces normes qu’elles leur soient nouvelles ou anciennes, explorant ainsi la manière dont la survie d’une norme équestre dépend largement de l'acceptation et de la validation individuelle. Par ailleurs, la constitution récente d’institutions spécialisées dans la pratique et la mise en écrit des différentes connaissances sont significatives dans cette acceptation et cette volonté de développer une pratique normée.Cette recherche se base sur des entretiens menés entre 2016 et 2018 auprès de clients et de professionnels de différentes structures équestres pékinoises. Grâce à une observation des cours, des entraînements, des tâches quotidiennes et des concours, des données ont pu émerger sur la question de la transmission des normes équestres et de leur établissement sur le territoire. Porteuse de représentations fortes, l’équitation classique européenne apparaît comme une pratique sportive et ludique réservée à une certaine classe sociale, cependant l’apparition de nouveaux types de structures et de disciplines entraîne des modifications progressives du profil type du cavalier chinois. Ces modifications sont également vectrices de nouvelles normes. Les résultats de cette recherche tendent à démontrer comment se structurent l’équitation en Chine et les défis auxquels son essor doit faire face. Ils donnent aussi à voir la complexité de l’implantation d’une pratique et de l’élaboration ou de la transmission des normes.This thesis focuses on the appearance of European classical equitation in contemporary China. The recent development of equestrian practices has led to the importation of equipment, horses and know-how, notably with the arrival of European professionals in equestrian structures. In addition, the recruitment of Mongolian professionals has greatly contributed to the development of equestrian disciplines in the country. The recruitment of Mongolian professionals, who are the bearers of new equestrian standards, reflects the desire of the structures to be part of an international sporting practice. Through ethnographic research conducted in several equestrian clubs in Beijing, this study focuses on the riders, whether professional or amateur, Han or Mongolian, and the way in which they take up or reject these norms, whether they are new or old, thus exploring the way in which the survival of an equestrian norm depends largely on individual acceptance and validation. Furthermore, the recent formation of institutions specializing in the practice and the writing of different knowledge is significant in this acceptance and willingness to develop a standardized practice.This research is based on interviews conducted between 2016 and 2018 with clients and professionals from different Beijing equestrian facilities. Through observation of lessons, training sessions, daily tasks and competitions, data emerged on the issue of the transmission of equestrian norms and their establishment on the territory. European classical horsemanship is strongly represented as a sport and leisure practice reserved for a certain social class, but the appearance of new types of structures and disciplines is leading to progressive modifications of the typical profile of the Chinese rider. These changes are also creating new norms. The results of this research tend to show how equestrianism in China is structured and the challenges facing its development. They also show the complexity of the implementation of a practice and the development or transmission of norms
- …
