3,422 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
Être ou ne pas être. À propos d'Araweté : os deuses canibais d'Eduardo Viveiros de Castro
No full textEduardo Viveiros de Castro studies the notion of Person in the Araweté and Tupi- Guarani thinking. He shows that this notion cannot be understood without reference to the Becoming, the "Other and Elsewhere". The author exposes the central themes of this book ; she then proposes somes reflections about the Tupinamba cannibalism, subject also discussed by E. Viveiros de Castro.Eduardo Viveiros de Castro étudie la notion de personne dans la pensée araweté, et tupi-guarani. Il montre comment cette notion ne peut se comprendre sans référence au Devenir, à « l'Autre et l'Ailleurs ». L'auteur expose les thèmes centraux de ce livre ; elle propose ensuite quelques réflexions sur le cannibalisme tupinamba, sujet également abordé par E. Viveiros de Castro.Eduardo Viveiros de Castro estudia la noción de persona dentro del pensamiento araweté y tupi-guarani. Muestra corno no se puede entender esta noción sin referirse al Devenir, al « Otro y Afuera ». La autora expone los temas centrales děste libro ; propone luego algumas reflexiones sobre el canibalismo tupinamba, asunto también tratado por E. Viveiros de Castro.Combès Isabelle. Être ou ne pas être. À propos d'Araweté : os deuses canibais d'Eduardo Viveiros de Castro. In: Journal de la Société des Américanistes. Tome 72, 1986. pp. 211-220
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
CASTRO URDIALES (Cantabria). 1:5.000
Get PDFComprende la ciudad de Castro-Urdiales y sus inmediaciones, en la provincia de SantanderOrientado con cuadranteRelieve representado por normalesIndica la situación de las trincheras y baterías francesas en el sitio de la ciudad de Castro UrdialesSeñala los principales edificios religiosos de la ciudadAparecen representadas diversas embarcaciones en el ma
Mulher, islã e literatura: os avatares de Isabelle Eberhardt
Get PDFThis work was developed though reading three books of Isabelle Eberhardt: Pages d'lslam, Notes de Route and Amours Nômades, as well as reading of criticai works of this author and studying in depth aspects of the Islamic religion and situation of woman in the Islamism, as well as her achieve on the society that the author lived, include striking and predominant influence the French occupation in the countries that are part of Maghreb (North African countries), especially Tunisia, Algeria and Morocco.Desenvolvido através da leitura de três obras a escritora argelina de origem suíça Isabelle Eberhardt: Pages d’Islam, Notes de Route e Amours Nomades, assim como a leitura da fortuna crítica dessa autora e as obras que estudam em profundidade os aspectos da religião islâmica e a situação da mulher no seio do islamismo, bem como seu alcance sobre a sociedade em que a autora viveu, incluindo a influência marcante e preponderante da ocupação francesa nos países que compõem o Magrebe (países do norte da África), mais especificamente a Tunísia, a Argélia e o Marrocos
Securitisation cannot stop the Covid-19 trafficking boom at the triple frontier between Paraguay, Brazil, and Argentina
No full textThe recent closure of borders at the Triple Frontier, particularly between Paraguay and Brazil, has impacted heavily on local commerce and employment. But despite increased surveillance, militarisation, and mobility restrictions, trafficking of drugs and contraband is booming. Partial legalisation of marijuana and a turn towards tourism represent more realistic alternatives in the long term, writes Isabelle Somma de Castro (Universidade de São Paulo) following on from her participation in the LSE LACC, PUC-SP, UNICAMP Researcher Links Workshop on Governance, Crime, and International Security
Isabelle Bell to Susan Niemcewicz, December 23, 1800
Get PDFIsabelle 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
Get PDFInterviews 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
Get PDFSecurity 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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