Forall X

Forall X PDF Author: P. D. Magnus
Publisher:
ISBN:
Category : Logic
Languages : en
Pages : 0

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Book Description


An Introduction to Formal Logic

An Introduction to Formal Logic PDF Author: Peter Smith
Publisher: Cambridge University Press
ISBN: 9780521008044
Category : Mathematics
Languages : en
Pages : 370

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Book Description
Formal logic provides us with a powerful set of techniques for criticizing some arguments and showing others to be valid. These techniques are relevant to all of us with an interest in being skilful and accurate reasoners. In this highly accessible book, Peter Smith presents a guide to the fundamental aims and basic elements of formal logic. He introduces the reader to the languages of propositional and predicate logic, and then develops formal systems for evaluating arguments translated into these languages, concentrating on the easily comprehensible 'tree' method. His discussion is richly illustrated with worked examples and exercises. A distinctive feature is that, alongside the formal work, there is illuminating philosophical commentary. This book will make an ideal text for a first logic course, and will provide a firm basis for further work in formal and philosophical logic.

An Introduction to Proof Theory

An Introduction to Proof Theory PDF Author: Paolo Mancosu
Publisher: Oxford University Press
ISBN: 0192895931
Category : Mathematics
Languages : en
Pages : 431

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Book Description
"Proof theory is a central area of mathematical logic of special interest to philosophy . It has its roots in the foundational debate of the 1920s, in particular, in Hilbert's program in the philosophy of mathematics, which called for a formalization of mathematics, as well as for a proof, using philosophically unproblematic, "finitary" means, that these systems are free from contradiction. Structural proof theory investigates the structure and properties of proofs in different formal deductive systems, including axiomatic derivations, natural deduction, and the sequent calculus. Central results in structural proof theory are the normalization theorem for natural deduction, proved here for both intuitionistic and classical logic, and the cut-elimination theorem for the sequent calculus. In formal systems of number theory formulated in the sequent calculus, the induction rule plays a central role. It can be eliminated from proofs of sequents of a certain elementary form: every proof of an atomic sequent can be transformed into a "simple" proof. This is Hilbert's central idea for giving finitary consistency proofs. The proof requires a measure of proof complexity called an ordinal notation. The branch of proof theory dealing with mathematical systems such as arithmetic thus has come to be called ordinal proof theory. The theory of ordinal notations is developed here in purely combinatorial terms, and the consistency proof for arithmetic presented in detail"--

Developing Alberta's Oil Sands

Developing Alberta's Oil Sands PDF Author: Paul Anthony Chastko
Publisher: University of Calgary Press
ISBN: 1552381242
Category : Business & Economics
Languages : en
Pages : 339

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Book Description
Alberta's oil sands represent a vast and untapped oil reserve that could reasonably supply all of Canada's energy needs for the next 475 years. With an estimated 300 billion barrels of recoverable oil at stake, the quest to develop this natural resource has been undertaken by many powerful actors, both nationally and internationally. Using research that integrates the economic, political, scientific, and business factors that have been influential in discovering and developing the sands, this book provides a comprehensive history of the oil sands project and a window on the nature of the complex relationships between industry, government, and transnational players. This book is the first comprehensive volume that examines the origins and development of the oil sands industry over the last century.

The Drybar Guide to Good Hair for All

The Drybar Guide to Good Hair for All PDF Author: Alli Webb
Publisher: Abrams
ISBN: 1613129882
Category : Design
Languages : en
Pages : 291

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Book Description
New York Times Bestseller Picture this. Your hair is a mess and you feel like a nut. You open your Drybar book and you feel better already! The Drybar Guide to Good Hair for All is the ultimate handbook for at-home hairstyling. Author Alli Webb, a long-time stylist and life-long curly hair girl, founded Drybar in 2010 as an affordable luxury—offering women a great blowout in a beautiful and fun atmosphere. Today, there are more than 60 Drybars across the country, with more opening every day. Drybar’s book makes it easy for women to get the Drybar look at home. Webb shares her tried and true tricks and tips in three in-depth sections featuring more than 100 style-inspiration photograph and step-by-step tutorials. Bright, upbeat, and loaded with style and substance, this book will give readers everywhere a good hair day at home!

Galapagos

Galapagos PDF Author: Michael Hume Jackson
Publisher: University of Calgary Press
ISBN: 1895176077
Category : Nature
Languages : en
Pages : 369

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Book Description
This book details the natural history of the plants and animals found in the Galapagos Islands. A list of the dominant plants according to vegetation zone is included. Of particular note is the discussion of the problems of colonisation by founding populations, biological evolution, and ecology, and of the evolutionary processes bringing about species diversity.

Sets, Logic, Computation

Sets, Logic, Computation PDF Author: Richard Zach
Publisher:
ISBN:
Category :
Languages : en
Pages : 418

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Book Description
A textbook on the semantics, proof theory, and metatheory of first-order logic. It covers naive set theory, first-order logic, sequent calculus and natural deduction, the completeness, compactness, and Löwenheim-Skolem theorems, Turing machines, and the undecidability of the halting problem and of first-order logic. It is based on the Open Logic project, and available for free download at slc.openlogicproject.org.

Sustainability Matters

Sustainability Matters PDF Author: Noel Keough
Publisher:
ISBN: 9781773852485
Category : Business & Economics
Languages : en
Pages : 256

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Book Description
Calgary, Alberta is a culturally diverse urban metropolis. Sprawling and car-dependent, fast-growing and affluent, it is dominated by the fossil fuel industry. For 30 years, Calgary has struggled to turn sustainability rhetoric into reality. Sustainability Matters is the story of Calgary's setbacks and successes on the path toward sustainability. Chronicling two decades of public conversations, political debate, urban policy and planning, and scholarly discovery, it is both a fascinating case study and an accessible introduction to the theory and practice of urban sustainability. A clear-eyed view of the struggles of turning knowledge into action, this book illuminates the places where theory and reality converge and presents an approach to municipal development, planning, and governance that takes seriously the urgent need to address climate change and injustice. Addressing a wide variety of topics and themes, including energy, diversity, economic development, and ecological health, Sustainability Matters is both a critique of current practice and a vision for the future that uses the city of Calgary as a microcosm to address issues faced by cities around the world. This is essential reading not only for every Calgarian working for a vibrant and sustainable future, but for all those interested in in the future of cities in a post-carbon world.

Material Theory of Induction

Material Theory of Induction PDF Author: John D. Norton
Publisher: Bsps Open
ISBN: 9781773852751
Category : Philosophy
Languages : en
Pages : 544

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Book Description
The fundamental burden of a theory of inductive inference is to determine which are the good inductive inferences or relations of inductive support and why it is that they are so. The traditional approach is modeled on that taken in accounts of deductive inference. It seeks universally applicable schemas or rules or a single formal device, such as the probability calculus. After millennia of halting efforts, none of these approaches has been unequivocally successful and debates between approaches persist. The Material Theory of Induction identifies the source of these enduring problems in the assumption taken at the outset: that inductive inference can be accommodated by a single formal account with universal applicability. Instead, it argues that that there is no single, universally applicable formal account. Rather, each domain has an inductive logic native to it.The content of that logic and where it can be applied are determined by the facts prevailing in that domain. Paying close attention to how inductive inference is conducted in science and copiously illustrated with real-world examples, The Material Theory of Induction will initiate a new tradition in the analysis of inductive inference.

The Comedian

The Comedian PDF Author: Clem Martini
Publisher: Brave & Brilliant
ISBN: 9781552389775
Category : Fiction
Languages : en
Pages : 0

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Book Description
Titus Maccius Plautus' career is on the decline. Once renound for bringing Greek comedies to the Roman world, now he struggles to stage a single play. Unlucky with money and unlucky in love, Plautus faces the world with wry dignity. This could be the performance that brings back fame and fortune, or the one that ends it all. Engaging, thoughtful, and funny, The Comedian dives into the rough and tumble world of arts in its infancy. Clem Martini draws on his talent and experience to bring to life the signs and sounds of a world where playwrights suffered and succeeded--but mostly suffered.