How Long Should It Take To Do A Hard Sudoku
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Will Shortz Presents Hard Sudoku Volume 1
The first in a new series: hard puzzles for serious sudoku solvers. Do you have what it takes? These 200 challenging sudoku puzzles from Will Shortz will keep your mind sharp! Features: - 200 hard puzzles - Big grids for easy solving - Introduction by legendary Puzzlemaster Will Shortz
Thinking as Computation
Students explore the idea that thinking is a form of computation by learning to write simple computer programs for tasks that require thought. This book guides students through an exploration of the idea that thinking might be understood as a form of computation. Students make the connection between thinking and computing by learning to write computer programs for a variety of tasks that require thought, including solving puzzles, understanding natural language, recognizing objects in visual scenes, planning courses of action, and playing strategic games. The material is presented with minimal technicalities and is accessible to undergraduate students with no specialized knowledge or technical background beyond high school mathematics. Students use Prolog (without having to learn algorithms: “Prolog without tears!”), learning to express what they need as a Prolog program and letting Prolog search for answers. After an introduction to the basic concepts, Thinking as Computation offers three chapters on Prolog, covering back-chaining, programs and queries, and how to write the sorts of Prolog programs used in the book. The book follows this with case studies of tasks that appear to require thought, then looks beyond Prolog to consider learning, explaining, and propositional reasoning. Most of the chapters conclude with short bibliographic notes and exercises. The book is based on a popular course at the University of Toronto and can be used in a variety of classroom contexts, by students ranging from first-year liberal arts undergraduates to more technically advanced computer science students.
Socialism is Dead, Nietzsche is Eternal
Jeremy is in search of knowledge to find a relationship between Nietzsche and socialism. He has reviewed most of Nietzsche's books, which cover several subjects including will to power, the overman, eternal recurrence, and most importantly human nature. Nietzsche criticizes the state, the Germans, and the Christians. Jeremy interviews a few gurus knowledgeable on the subjects covered in the book: socialism, capitalism, human nature, as well as Nietzsche's ideas related to justice, morality and life. His findings include the non-viability of socialism, the need of a capitalistic approach for the economy, Nietzsche's contributions on human nature and a recommendation to improve life in Venezuela. He uses a capitalistic approach to write the book where the currency is not money but knowledge. Everybody is interested in knowledge and everybody gets its share.