Up school

LUNA240420 [F0055] – Brochura. 19,5 x 13,5 cm. 568 p. Livro usado; muito bom; riscos superficiais; alguns pontos de oxidação; contornos, junções e pontas levemente amassados e com tinta um pouco descascada; pequenas marcas de dobras nas pontas e na lombada; pedaço de etiqueta na capa. Bordas e corte levemente amarelados, com pontos de oxidação. Miolo sem grifos; páginas levemente amareladas com pontas um pouco amassadas e algumas pequenas marcas de dobras. Sinopse: Jason has a problem. He doesn't remember anything before waking up on a school bus holding hands with a girl. Apparently she's his girlfriend Piper, his best friend is a kid named Leo, and they're all students in the Wilderness School, a boarding school for "bad kids." What he did to end up here, Jason has no idea-except that everything seems very wrong. Piper has a secret. Her father has been missing for three days, and her vivid nightmares reveal that he's in terrible danger. Now her boyfriend doesn't recognize her, and when a freak storm and strange creatures attack during a school field trip, she, Jason, and Leo are whisked away to someplace called Camp Half-Blood. What is going on? Leo has a way with tools. His new cabin at Camp Half-Blood is filled with them. Seriously, the place beats Wilderness School hands down, with its weapons training, monsters, and fine-looking girls. What's troubling is the curse everyone keeps talking about, and that a camper's gone missing. Weirdest of all, his bunkmates insist they are all-including Leo-related to a god. Ano e edição desta publicação: 2011 - 2ª edição. (Exemplar de acordo com imagem do vendedor). *** Livro disponível para envio imediato ***

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. Livro em perfeito estado Retirada no bairro Butantã, em SP ou envio pelo correio.