The Little Typer

The Little Typer

Author: Daniel P. Friedman

Publisher: MIT Press

Published: 2018-09-18

Total Pages: 418

ISBN-13: 0262536439

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An introduction to dependent types, demonstrating the most beautiful aspects, one step at a time. A program's type describes its behavior. Dependent types are a first-class part of a language, and are much more powerful than other kinds of types; using just one language for types and programs allows program descriptions to be as powerful as the programs they describe. The Little Typer explains dependent types, beginning with a very small language that looks very much like Scheme and extending it to cover both programming with dependent types and using dependent types for mathematical reasoning. Readers should be familiar with the basics of a Lisp-like programming language, as presented in the first four chapters of The Little Schemer. The first five chapters of The Little Typer provide the needed tools to understand dependent types; the remaining chapters use these tools to build a bridge between mathematics and programming. Readers will learn that tools they know from programming—pairs, lists, functions, and recursion—can also capture patterns of reasoning. The Little Typer does not attempt to teach either practical programming skills or a fully rigorous approach to types. Instead, it demonstrates the most beautiful aspects as simply as possible, one step at a time.


Basic Simple Type Theory

Basic Simple Type Theory

Author: J. Roger Hindley

Publisher: Cambridge University Press

Published: 1997

Total Pages: 200

ISBN-13: 0521465184

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Type theory is one of the most important tools in the design of higher-level programming languages, such as ML. This book introduces and teaches its techniques by focusing on one particularly neat system and studying it in detail. By concentrating on the principles that make the theory work in practice, the author covers all the key ideas without getting involved in the complications of more advanced systems. This book takes a type-assignment approach to type theory, and the system considered is the simplest polymorphic one. The author covers all the basic ideas, including the system's relation to propositional logic, and gives a careful treatment of the type-checking algorithm that lies at the heart of every such system. Also featured are two other interesting algorithms that until now have been buried in inaccessible technical literature. The mathematical presentation is rigorous but clear, making it the first book at this level that can be used as an introduction to type theory for computer scientists.


Discovering Your Personality Type

Discovering Your Personality Type

Author: Don Richard Riso

Publisher: Houghton Mifflin Harcourt

Published: 2003-05-20

Total Pages: 225

ISBN-13: 0547527608

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The bestselling beginner’s guide to identifying and understanding the nine personality profiles and applying them to your daily life. The leading experts in the field, Don Richard Riso and Russ Hudson have set the standard for determining personality type using the enneagram. Their studies of this ancient symbol and their progress in determining type with increasing accuracy are known, taught, and emulated worldwide. Discovering Your Personality Type is the essential introduction to this system, a psychological framework that can be used practically, in many aspects of daily life. This revised and updated edition features the all-new, scientifically validated Riso-Hudson Type Indicator, and has also been refined and simplified to appeal especially to beginners and anyone interested in unlocking the secrets of personality. The most reliable, most accurate, and most accessible way to identify type, the improved enneagram questionnaire helps identify fundamental character traits, revealing invaluable directions for change and growth. The profile that emerges is useful for a wide variety of purposes: professional development, education, relationships, vocational counseling, and more. Discovering Your Personality Type is the book readers need in order to begin to see the possibilities made available by understanding personality types. More Than 1 Million Riso-Hudson Enneagram Books Sold


An Introduction to Functional Programming Through Lambda Calculus

An Introduction to Functional Programming Through Lambda Calculus

Author: Greg Michaelson

Publisher: Courier Corporation

Published: 2013-04-10

Total Pages: 338

ISBN-13: 0486280292

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Well-respected text for computer science students provides an accessible introduction to functional programming. Cogent examples illuminate the central ideas, and numerous exercises offer reinforcement. Includes solutions. 1989 edition.


Types and Programming Languages

Types and Programming Languages

Author: Benjamin C. Pierce

Publisher: MIT Press

Published: 2002-01-04

Total Pages: 656

ISBN-13: 9780262162098

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A comprehensive introduction to type systems and programming languages. A type system is a syntactic method for automatically checking the absence of certain erroneous behaviors by classifying program phrases according to the kinds of values they compute. The study of type systems—and of programming languages from a type-theoretic perspective—has important applications in software engineering, language design, high-performance compilers, and security. This text provides a comprehensive introduction both to type systems in computer science and to the basic theory of programming languages. The approach is pragmatic and operational; each new concept is motivated by programming examples and the more theoretical sections are driven by the needs of implementations. Each chapter is accompanied by numerous exercises and solutions, as well as a running implementation, available via the Web. Dependencies between chapters are explicitly identified, allowing readers to choose a variety of paths through the material. The core topics include the untyped lambda-calculus, simple type systems, type reconstruction, universal and existential polymorphism, subtyping, bounded quantification, recursive types, kinds, and type operators. Extended case studies develop a variety of approaches to modeling the features of object-oriented languages.


Cad Frameworks

Cad Frameworks

Author: Pieter van der Wolf

Publisher: Springer Science & Business Media

Published: 2012-12-06

Total Pages: 231

ISBN-13: 1461527686

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Since the early 1980s, CAD frameworks have received a great deal of attention, both in the research community and in the commercial arena. It is generally agreed that CAD framework technology promises much: advanced CAD frameworks can turn collections of individual tools into effective and user-friendly design environments. But how can this promise be fulfilled? CAD Frameworks: Principles and Architecture describes the design and construction of CAD frameworks. It presents principles for building integrated design environments and shows how a CAD framework can be based on these principles. It derives the architecture of a CAD framework in a systematic way, using well-defined primitives for representation. This architecture defines how the many different framework sub-topics, ranging from concurrency control to design flow management, relate to each other and come together into an overall system. The origin of this work is the research and development performed in the context of the Nelsis CAD Framework, which has been a working system for well over eight years, gaining functionality while evolving from one release to the next. The principles and concepts presented in this book have been field-tested in the Nelsis CAD Framework. CAD Frameworks: Principles and Architecture is primarily intended for EDA professionals, both in industry and in academia, but is also valuable outside the domain of electronic design. Many of the principles and concepts presented are also applicable to other design-oriented application domains, such as mechanical design or computer-aided software engineering (CASE). It is thus a valuable reference for all those involved in computer-aided design.