Best Selling Books by Petr

Shows how different forms of skepticism can lead to remarkably different moral and political implications.

People have always been interested in numbers, in particular the natural numbers. Of course, we all have an intuitive notion of what these numbers are. In the late 19th century mathematicians, such as Grassmann, Frege and Dedekind, gave definitions for these familiar objects. Since then the development of axiomatic schemes for arithmetic have played a fundamental role in a logical understanding of mathematics. There has been a need for some time for a monograph on the metamathematics of first-order arithmetic. The aim of the book by Hajek and Pudlak is to cover some of the most important results in the study of a first order theory of the natural numbers, called Peano arithmetic and its fragments (subtheories). The field is quite active, but only a small part of the results has been covered in monographs. This book is divided into three parts. In Part A, the authors develop parts of mathematics and logic in various fragments. Part B is devoted to incompleteness. Part C studies systems that have the induction schema restricted to bounded formulas (Bounded Arithmetic). One highlight of this section is the relation of provability to computational complexity. The study of formal systems for arithmetic is a prerequisite for understanding results such as Gödel''s theorems. This book is intended for those who want to learn more about such systems and who want to follow current research in the field. The book contains a bibliography of approximately 1000 items.

This exceptional book of selected essays by the leading Czech linguist and member of the Prague Linguistic Circle contains 26 essays in English and 4 in German. It presents the wide scope of Sgall''s interest and in six parts introduces the main spheres of author''s interest - the first part of the book deals with general and theoretical questions, the second contains Sgall''s contribution to syntax, the third covers the functional sentence perspective, the fourth sentences and discourse, the fifth language typology and the last part covers speech and writing

This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work is in the "public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.

The Russian anarchist Peter Kropotkin was the world''s foremost spokesman of anarchism at the end of the nineteenth and the beginning of the twentieth centuries. The Conquest of Bread is his most detailed description of the ideal society, embodying anarchist communism, and of the social revolution that was to achieve it. Marshall Shatz''s introduction to this edition traces Kropotkin''s evolution as an anarchist, from his origins in the Russian aristocracy to his disillusionment with the Russian Revolution, and the volume also includes a hitherto untranslated chapter from his classic Memoirs of a Revolutionist, which contains colourful character-sketches of some of his fellow anarchists, as well as an article he wrote summarising the history of anarchism, and some of his views on the Revolution.

Leaving his beloved meadow behind helps Hare discover what makes it such a special place in this captivating new book from acclaimed author-illustrator Petr Horácek. Hare’s meadow is a beautiful place, but he can’t tell whether it’s the best place in the world. His friends all say it is. The rabbits love to run and play together in the fields, the birds love to sing to Hare from high up in the trees, and Bear loves the bees and the honey they share with everyone. But Hare still isn’t certain, so he sets off to explore the world and find out for himself. He discovers green fields, gushing rivers, and starlit deserts. His friends would surely love these places, too, but they’re all back in the meadow without him . . . which leads Hare to realize something important. In a gorgeously written and illustrated story, Petr Horácek masters a tender new tone and delivers a thoughtful meditation on what makes a home.