Skolem th (28 risultati)

Soft cover. Condizione: Good. Soft Cover. Good. 7 x 9 1/2. 192 text pages. Text in English. Many contributors. Unmarked, tight and clean.

Soft cover. Condizione: Very Good. Soft Cover. Good. 7 x 9 1/2. 332 text pages. Many contributors. Text in English. Unmarked, tight and clean.

paperback. Condizione: Good.

Broschiert. Condizione: Gut. 130 Seiten; Das Buch befindet sich in einem ordentlich erhaltenen Zustand. Einbandkanten sind bestoßen. Altersbedingte Anbräunung des Papiers. Sprache: Deutsch Gewicht in Gramm: 210.

Chelsea publishing company, New York - 1950, Ergebnisse der Mathematik und ihrer Grenzgebiete herausgegeben von der Schriftleitung des "Zentralblatt für Mathematik", fünfter Band, 4, 13,50x21 cm, relié, 132 pages Bon état, mais exemplaire de bibliothèque sans jaquette - Pour les envois hors de France, la tafication «livre & brochure» pour les frais de port a disparue.Les frais de port annoncés correspondent à une moyenne. Ils seront calculés au plus juste en fonction du poids de votre article.…

Condizione: Good. This is an ex-library book and may have the usual library/used-book markings inside.This book has hardback covers. In good all round condition. No dust jacket. Please note the Image in this listing is a stock photo and may not match the covers of the actual item,400grams, ISBN.

gebundene Ausgabe. Condizione: Gut. 140 Seiten; Das hier angebotene Buch stammt aus einer teilaufgelösten Bibliothek und kann die entsprechenden Kennzeichnungen aufweisen (Rückenschild, Instituts-Stempel.); der Buchzustand ist ansonsten ordentlich und dem Alter entsprechend gut. In FRANZÖSISCHER Sprache. Sprache: Französisch Gewicht in Gramm: 360.…

Condizione: Near Fine. Oslo 1934 first edition. Dybwad. Extracted from Skrifter det Norske Videnskaps-Akademi i oslo 1933. I. Mathemtisk. 2. Bind. 61p. 4to. Rebound in later plain wraps. Near Fine, no owner marks.

Mathematische zeitschrift - 1955 - 1956, in-8, relié, 541 pages Très bon état - Pour les envois hors de France, la tafication «livre & brochure» pour les frais de port a disparue.Les frais de port annoncés correspondent à une moyenne. Ils seront calculés au plus juste en fonction du poids de votre article.…

Softcover. 113 p. -good.-(Cover worn and sunned, name in ink on the fly-leaf, three underlinings in pencil, but otherwise in good condition. ).

Condizione: Good. Oslo 1944. Ugitt av det Dorke Videnskaps-Akademi i Oslo, Mat.- Naturv. Klasse. In Norwegian. Sm.4to., 70pp., rebound in later plain wraps. Narrow old dry stain at left margin of first dozen pages. Good.

Condizione: Bueno. 29.

weicher Einband. 37 S. Gr 8° Br. Sprache: Deutsch.

weicher Einband. 28 S. Gr 8° Br. Sprache: Deutsch.

weicher Einband. 14 S. Gr 8° Br. Sprache: Deutsch.

weicher Einband. 38 S. Gr 8° Br. Sprache: Deutsch.

weicher Einband. 49 S. Gr 8° Br. Sprache: Deutsch.

Soft cover. Condizione: Near Fine. 1st Edition. 36 pp. Original printed wrappers. UNOPENED COPY. Near Fine. First Edition. Löwenheim-Skolem Theorem. "Many logicians would agree that Skolem and Gödel are the two greatest logicians of the [20th] century" (Wang, "Skolem and Gödel", Nordic Journal of Philosophical Logic, Vol. 1, no. 2, pp. 119-132). "The first result presented in the paper is that every well-formed formula of the first-order predicate calculus has what is now known as a Skolem normal form for satisfiability. . . . Skolem normal forms have since become one of the logician's standard tools. These forms were used, in particular, by Gödel in his proof of the completeness of quantification theory (1930). . . . After having introduced the normal form of a formula, Skolem offers (Theorem 2) a new proof of Löwenheim's theorem. . . . He is able to fill a serious gap left open by Löwenheim in his proof. Skolem notes the use of the axiom of choice in his proof. . .(Van Heijenoort, From Frege to Gödel, p. 252; English translation (of §1) Logico-Combinatorial Investigations in the Satisfiability or Provability of Mathematical Propositions: A Simplified Proof of a Theorem by L. Löwenheim and Generalizations of the Theorem in Van Heijenoort, pp. 254-63). "It seems clear that Godel read at least the statements of theorems and definitions in Löwenheim's paper, and in Skolem's 1920 paper as well. In the published version of his thesis (1930), Gödel cites Skolem (1920) explicitly: 'An analogous procedure was used by Skolem (1920) in proving Löwenheim's theorem' (Gödel 1930, pp. 108-109). . . . Skolem studied at Göttingen in the winter of 1915-1916. We do not know whether he first learned of Löwenheim's paper at Göttingen, or whether he simply read it in the Mathematische Annalen. Skolem's first paper re-proving Löwenheim's theorem (1920) introduced the notion of first-order equations and dropped the relative sum and product notation that Löwenheim had adopted from Schröder, and which originated with Peirce. Skolem's 1920 proof was thus a simplified version of Löwenheim's original proof using algebraic notations and the axiom of choice. Skolem did not claim that Löwenheim's original proof was wrong or incomplete; he only said he was giving a simpler and clearer proof. . . . Stated in the language of the calculus of relatives, Löwenheim's celebrated theorem about first-order logic simply fell out of what was for him an obvious technical generalization of something that was more interesting in the calculus of relatives, that is, a technique that enables him to say what the cardinalities of universes can be from the analysis of the form of an equation. It was left to Skolem to extract the essence of Löwenheim's theorem and state it in the language of first-order logic. . . . [A]lthough Löwenheim's paper was published in 1915 in the premier mathematical journal in the world, it was not until Skolem's paper of 1920 that Löwenheim's theorem received any attention. . . . Skolem's 1920 paper . . . begins with a theorem known today as the Skolem normal form. . . . Skolem's 1920 proof of Löwenheim's theorem uses the axiom of choice. It is quite simple. It is also not Löwenheim's proof, although the ideas are present in Löwenheim in a less clear form and in a longer proof. . ." (Brady, From Peirce to Skolem: A Neglected Chapter in the History of Logic pp. 3-4, 170-71, 197-98). OCLC locates copies in these 5 US libraries: Chicago, Iowa, Johns Hopkins, Stanford, Washington.…

Soft cover. Condizione: Very Good. 1st Edition. 37 pp. Original wrappers. Spine repaired (see photos). Signature of former owner Samuel Skulsky on title page. Very Good. First Edition. "Skolem's second paper in logic, dated 26 May 1917 and published in Norway in 1919. The work contains important early results on lattice theory, including the following: 1. A proof of the mutual independence of all the lattice axioms through graphical models, some of them infinite. 2. The same for distributive lattices. In particular, the five-element lattice that is a counterexample to distributivity is given. 3. A method for deciding if an atomic formula is derivable from at most two atomic formulas by the axioms for a distributive lattice. Skolem's paper also introduces the notion of a Heyting algebra. . . . It is quite astonishing that Skolem had found an algebraic axiomatization of intuitionistic propositional logic well before its basic principles were definitively clarified by Heyting's axiomatization (1930). Of his motivations for introducing the algebraic axiomatization, what he called 'class rings' (Klassenringe), Skolem writes that they are 'a natural continuation and generalization of the groups of the identity calculus' (1919, p. 78). Whatever the motivations, Skolem had invented the notion of a Heyting algebra directly from lattice theory, through a symbolic maximal solution of the defining inequality of the arrow. . . . Skolem's work was appreciated by Dana Scott who wrote, in a review of a late lattice-theoretic paper Skolem (1958): 'In a remarkable paper published in 1919 . . . the author studied several questions about distributive lattices in a completely abstract and general form. At that time, however, he did not use the terminology we know today. . . . Hence, his work escaped the notice that it actually deserves' " (Jan van Plato, "In the Shadows of the Löwenheim-Skolem Theorem: Early Combinatorial Analyses of Mathematical Proofs," Bulletin of Symbolic Logic, Vol. 13, no. 2, June 2007).…

Kristiania, 1921. Royal8vo. Unopened, uncut in the original printed wrappers. Very fine and clean. 57 pp. First edition.

Kristiania, Jacob Dybwad, 1922. Royal8vo. Uncut, unopened in the original printed wrappers. Fine and clean. 7 pp. First appearance of Skolem's paper on the posthumous published works by L. Sylow.

Oslo, jacob Dybwad, 1940. Royal8vo. Uncut, unopened in the original printed wrappers. Very fine and clean. 18 pp. First appearance of Skolem's paper on the generalizations of the Betti-Guidiceschen equations.

Leather Bound. Condizione: New. Language: German. Language: German. Presenting an Exquisite Leather-Bound Edition, expertly crafted with Original Natural Leather that gracefully adorns the spine and corners. The allure continues with Golden Leaf Printing that adds a touch of elegance, while Hand Embossing on the rounded spine lends an artistic flair. This masterpiece has been meticulously reprinted in 2024, utilizing the invaluable guidance of the original edition published many years ago in 1925. The contents of this book are presented in classic black and white. Its durability is ensured through a meticulous sewing binding technique, enhancing its longevity. Imprinted on top-tier quality paper. A team of professionals has expertly processed each page, delicately preserving its content without alteration. Due to the vintage nature of these books, every page has been manually restored for legibility. However, in certain instances, occasional blurriness, missing segments, or faint black spots might persist. We sincerely hope for your understanding of the challenges we faced with these books. Recognizing their significance for readers seeking insight into our historical treasure, we've diligently restored and reissued them. Our intention is to offer this valuable resource once again. We eagerly await your feedback, hoping that you'll find it appealing and will generously share your thoughts and recommendations. Lang: - German, Vol: - , Pages: - 72, Print on Demand. If it is a multi-volume set, then it is only a single volume. We are specialised in Customisation of books, if you wish to opt different color leather binding, you may contact us. This service is chargeable. Product Disclaimer: Kindly be informed that, owing to the inherent nature of leather as a natural material, minor discolorations or textural variations may be perceptible. Explore the FOLIO EDITION (12x19 Inches): Available Upon Request. 72 72.…

LeatherBound. Condizione: New. BOOKS ARE EXEMPT FROM IMPORT DUTIES AND TARIFFS; NO EXTRA CHARGES APPLY. Leatherbound edition. Condition: New. Leather Binding on Spine and Corners with Golden leaf printing on spine. Bound in genuine leather with Satin ribbon page markers and Spine with raised gilt bands. Pages: 72. A perfect gift for your loved ones. Reprinted from 1925 edition. NO changes have been made to the original text. This is NOT a retyped or an ocr'd reprint. Illustrations, Index, if any, are included in black and white. Each page is checked manually before printing. As this print on demand book is reprinted from a very old book, there could be some missing or flawed pages, but we always try to make the book as complete as possible. Fold-outs, if any, are not part of the book. If the original book was published in multiple volumes then this reprint is of only one volume, not the whole set. IF YOU WISH TO ORDER PARTICULAR VOLUME OR ALL THE VOLUMES YOU CAN CONTACT US. Resized as per current standards. Sewing binding for longer life, where the book block is actually sewn (smythe sewn/section sewn) with thread before binding which results in a more durable type of binding. Language: German Pages: 72.…

Leather Bound. Condizione: New. Language: German. Language: German. Presenting an Exquisite Leather-Bound Edition, expertly crafted with Original Natural Leather that gracefully adorns the spine and corners. The allure continues with Golden Leaf Printing that adds a touch of elegance, while Hand Embossing on the rounded spine lends an artistic flair. This masterpiece has been meticulously reprinted in 2018, utilizing the invaluable guidance of the original edition published many years ago in 1917. The contents of this book are presented in classic black and white. Its durability is ensured through a meticulous sewing binding technique, enhancing its longevity. Imprinted on top-tier quality paper. A team of professionals has expertly processed each page, delicately preserving its content without alteration. Due to the vintage nature of these books, every page has been manually restored for legibility. However, in certain instances, occasional blurriness, missing segments, or faint black spots might persist. We sincerely hope for your understanding of the challenges we faced with these books. Recognizing their significance for readers seeking insight into our historical treasure, we've diligently restored and reissued them. Our intention is to offer this valuable resource once again. We eagerly await your feedback, hoping that you'll find it appealing and will generously share your thoughts and recommendations. Lang: - German, Vol:- Volume 1917, Pages:- 424, Print on Demand. If it is a multi-volume set, then it is only a single volume. We are specialised in Customisation of books, if you wish to opt different color leather binding, you may contact us. This service is chargeable. Product Disclaimer: Kindly be informed that, owing to the inherent nature of leather as a natural material, minor discolorations or textural variations may be perceptible. Explore the FOLIO EDITION (12x19 Inches): Available Upon Request. Volume 1917 424 424.…

Leatherbound. Condizione: NEW. BOOKS ARE EXEMPT FROM IMPORT DUTIES AND TARIFFS; NO EXTRA CHARGES APPLY. Leatherbound edition. Condition: New. Leather Binding on Spine and Corners with Golden leaf printing on spine. Bound in genuine leather with Satin ribbon page markers and Spine with raised gilt bands. Pages: 424. A perfect gift for your loved ones. Reprinted from 1917 edition. NO changes have been made to the original text. This is NOT a retyped or an ocr'd reprint. Illustrations, Index, if any, are included in black and white. Each page is checked manually before printing. As this print on demand book is reprinted from a very old book, there could be some missing or flawed pages, but we always try to make the book as complete as possible. Fold-outs, if any, are not part of the book. If the original book was published in multiple volumes then this reprint is of only one volume, not the whole set. IF YOU WISH TO ORDER PARTICULAR VOLUME OR ALL THE VOLUMES YOU CAN CONTACT US. Resized as per current standards. Sewing binding for longer life, where the book block is actually sewn (smythe sewn/section sewn) with thread before binding which results in a more durable type of binding. Volume 1917 Language: German Pages: 424 Volume 1917.…

Leatherbound. Condizione: NEW. BOOKS ARE EXEMPT FROM IMPORT DUTIES AND TARIFFS; NO EXTRA CHARGES APPLY. Leatherbound edition. Condition: New. Leather Binding on Spine and Corners with Golden leaf printing on spine. Bound in genuine leather with Satin ribbon page markers and Spine with raised gilt bands. Pages: 868. A perfect gift for your loved ones. Reprinted from 1922 edition. NO changes have been made to the original text. This is NOT a retyped or an ocr'd reprint. Illustrations, Index, if any, are included in black and white. Each page is checked manually before printing. As this print on demand book is reprinted from a very old book, there could be some missing or flawed pages, but we always try to make the book as complete as possible. Fold-outs, if any, are not part of the book. If the original book was published in multiple volumes then this reprint is of only one volume, not the whole set. IF YOU WISH TO ORDER PARTICULAR VOLUME OR ALL THE VOLUMES YOU CAN CONTACT US. Resized as per current standards. Sewing binding for longer life, where the book block is actually sewn (smythe sewn/section sewn) with thread before binding which results in a more durable type of binding. Volume 1921 no.9-20 Language: German Pages: 868 Volume 1921 no.9-20.…

Leather Bound. Condizione: New. Language: ger. Language: ger. Presenting an Exquisite Leather-Bound Edition, expertly crafted by the prestigious organization "Rare Biblio" with Original Natural Leather that gracefully adorns the spine and corners. The allure continues with Golden Leaf Printing that adds a touch of elegance, while Hand Embossing on the rounded spine lends an artistic flair. This masterpiece has been meticulously reprinted in 2024, utilizing the invaluable guidance of the original edition published many years ago in 1922. The contents of this book are presented in classic black and white. Its durability is ensured through a meticulous sewing binding technique, enhancing its longevity. Imprinted on top-tier quality paper. A team of professionals has expertly processed each page, delicately preserving its content without alteration. Due to the vintage nature of these books, every page has been manually restored for legibility. However, in certain instances, occasional blurriness, missing segments, or faint black spots might persist. We sincerely hope for your understanding of the challenges we faced with these books. Recognizing their significance for readers seeking insight into our historical treasure, we've diligently restored and reissued them. Our intention is to offer this valuable resource once again. We eagerly await your feedback, hoping that you'll find it appealing and will generously share your thoughts and recommendations. Lang: - ger, Vol:- Volume 1921 no.9-20, Pages:- 868, Print on Demand. If it is a multi-volume set, then it is only a single volume. We are specialised in Customisation of books, if you wish to opt different color leather binding, you may contact us. This service is chargeable. Product Disclaimer: Kindly be informed that, owing to the inherent nature of leather as a natural material, minor discolorations or textural variations may be perceptible. Explore the FOLIO EDITION (12x19 Inches): Available Upon Request. Volume 1921 no.9-20 868 868.…