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Many students have trouble the first time they take a mathematics course in which proofs play a significant role. This new edition of Velleman's successful text will prepare students to make the transition from solving problems to proving theorems by teaching them the techniques needed to read and write proofs. The book begins with the basic concepts of logic and set theory, to familiarize students with the language of mathematics and how it is interpreted. These concepts are used as the basis for a step-by-step breakdown of the most important techniques used in constructing proofs. The author shows how complex proofs are built up from these smaller steps, using detailed 'scratch work' sections to expose the machinery of proofs about the natural numbers, relations, functions, and infinite sets. To give students the opportunity to construct their own proofs, this new edition contains over 200 new exercises, selected solutions, and an introduction to Proof Designer software. No background beyond standard high school mathematics is assumed. This book will be useful to anyone interested in logic and proofs: computer scientists, philosophers, linguists, and of course mathematicians.
Many mathematics students have trouble the first time they take a course, such as linear algebra, abstract algebra, introductory analysis, or discrete mathematics, in which they are asked to prove various theorems. This textbook will prepare students to make the transition from solving problems to proving theorems by teaching them the techniques needed to read and write proofs. The book begins with the basic concepts of logic and set theory, to familiarize students with the language of mathematics and how it is interpreted. These concepts are used as the basis for a step-by-step breakdown of the most important techniques used in constructing proofs. The author shows how complex proofs are built up from these smaller steps, using detailed "scratchwork" sections to expose the machinery of proofs about the natural numbers, relations, functions, and infinite sets. Numerous exercises give students the opportunity to construct their own proofs. No background beyond standard high school mathematics is assumed. This book will be useful to anyone interested in logic and proofs: computer scientists, philosophers, linguists, and of course mathematicians.
Inspire performance and prove your leadership impact Prove It! is the executive guide to improving organisational performance through the practice of evidence-based leadership. More than ever before, the world is demanding transparency and accountability from organisational leaders, and there is a growing push to hold leaders responsible for the performance of their organisation. Many executives panic at the thought of what transparency might reveal and how they might be held accountable, but others relish the opportunity to showcase their organisation's performance. The difference is in the leadership methodology. The best leaders already know how their organisation is performing, and that it has improved during their tenure – and they can prove it because they practise evidence-based leadership. This book offers a clear blueprint for building on your existing skills and performance management systems to build a truly high performance organisation. Just three personal leadership habits and three organisation-wide habits can transform your organisation into the powerhouse you know it can be. With a simple methodology and a focus on practical results, this book can help you: Set a strategic direction that really does inspire organisational excellence Gain a true picture of your organisation's performance Master the habits that help you lead a high-performance culture Improve your organisation objectively, measurably and quickly If an organisation can only be as good as its leadership, it's reasonable to place the burden of performance responsibility on those who make the decisions. A leader's job is to inspire, motivate and guide, and those who do it well are already raising the bar. Prove It! gives you a practical model for measurable, real-world results, starting today.
This book is an introduction to the language and standard proof methods of mathematics. It is a bridge from the computational courses (such as calculus or differential equations) that students typically encounter in their first year of college to a more abstract outlook. It lays a foundation for more theoretical courses such as topology, analysis and abstract algebra. Although it may be more meaningful to the student who has had some calculus, there is really no prerequisite other than a measure of mathematical maturity.
No More Pretending. No More Performing. No More Fighting to Prove Yourself. Are you trying your best to measure up—yet you still feel as if you’re losing ground? You are not alone. Jennie Allen understands the daily struggle so many of us face with the fear that we are not enough. And she invites us into a different experience, one in which our souls overflow with contentment and joy. In Nothing to Prove she calls us to… * Find freedom from self-induced pressure by admitting we’re not enough—but Jesus is. * Admit our greatest needs and watch them be filled by the only One who can meet them. * Make it our goal to know and love Jesus, then watch what He does in and through us. As you wade into the refreshing truth of the more-than-enough life Jesus offers, you’ll experience the joyous freedom that comes to those who are determined to discover what God can do through a soul completely in love with Him. Discover the answer to your soul-deep thirst Too many of us have bought into the lie that our cravings will be satisfied if we are enough and if we have enough. So we chase image, answers, things, and people—and we wonder all the while, Why am I still thirsty? My single goal with this book is to lead your thirsty soul to the only source of lasting fulfillment: Jesus. He is the living water, a limitless supply that will not only quench your thirst but will fill you and then come pouring out of you into a thirsty world. Because of Him, you are loved. You are known. You can take a deep breath. Because you have nothing to prove. —Jennie * * * * * “These pages are what your soul is begging for" —Ann Voskamp “Nothing to Prove takes us on a journey toward freedom from the need to measure up.” —Mark Batterson We love this glorious and universally resounding message.” —Louie and Shelley Giglio “This book will help you take your eyes off your problems and put them back on God’s promises.” —Christine Caine
The first proof of the CollatzConjecture.

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