Forever Undecided

Forever Undecided

Author: Raymond M. Smullyan

Publisher: Knopf

Published: 2012-07-04

Total Pages: 286

ISBN-13: 0307962466

DOWNLOAD EBOOK

Forever Undecided is the most challenging yet of Raymond Smullyan’s puzzle collections. It is, at the same time, an introduction—ingenious, instructive, entertaining—to Gödel’s famous theorems. With all the wit and charm that have delighted readers of his previous books, Smullyan transports us once again to that magical island where knights always tell the truth and knaves always lie. Here we meet a new and amazing array of characters, visitors to the island, seeking to determine the natives’ identities. Among them: the census-taker McGregor; a philosophical-logician in search of his flighty bird-wife, Oona; and a regiment of Reasoners (timid ones, normal ones, conceited, modest, and peculiar ones) armed with the rules of propositional logic (if X is true, then so is Y). By following the Reasoners through brain-tingling exercises and adventures—including journeys into the “other possible worlds” of Kripke semantics—even the most illogical of us come to understand Gödel’s two great theorems on incompleteness and undecidability, some of their philosophical and mathematical implications, and why we, like Gödel himself, must remain Forever Undecided!


Undecided

Undecided

Author: Barbara Bailey Kelley

Publisher: ReadHowYouWant.com

Published: 2011

Total Pages: 410

ISBN-13: 1459619331

DOWNLOAD EBOOK

Large Print.


My Life Undecided

My Life Undecided

Author: Jessica Brody

Publisher: Farrar, Straus and Giroux (BYR)

Published: 2011-06-07

Total Pages: 317

ISBN-13: 1429940999

DOWNLOAD EBOOK

PLEASE READ THIS! MY LIFE DEPENDS ON IT! Okay, maybe that was a bit melodramatic, but I'm sorry, I'm feeling a bit melodramatic at the moment. Here's the deal. My name is Brooklyn Pierce, I'm fifteen years old, and I am decisionally challenged. Seriously, I can't remember the last good decision I made. I can remember plenty of crappy ones though. Including that party I threw when my parents were out of town that accidentally burned down a model home. Yeah, not my finest moment, for sure. But see, that's why I started a blog. To enlist readers to make my decisions for me. That's right. I gave up. Threw in the towel. I let someone else decide which book I read for English. And whether or not I accepted an invitation to join the debate team from that cute-in-a-dorky-sort-of-way guy who gave me the Heimlich maneuver in the cafeteria. (Note to self: chew the melon before swallowing it.) I even let them decide who I dated! Well, it turns out there are some things in life you simply can't choose or have chosen for you—like who you fall in love with. And now everything's more screwed up than ever. But don't take my word for it. Read the book and decide for yourself. You'll laugh, you'll cry, you'll scream in frustration. Or maybe that's just me. After all, it's my life.


Satan, Cantor, And Infinity And Other Mind-bogglin

Satan, Cantor, And Infinity And Other Mind-bogglin

Author: Raymond M. Smullyan

Publisher: Knopf

Published: 2012-05-30

Total Pages: 281

ISBN-13: 0307819825

DOWNLOAD EBOOK

More than two hundred new and challenging logic puzzles—the simplest brainteaser to the most complex paradoxes in contemporary mathematical thinking—from our topmost puzzlemaster (“the most entertaining logician who ever lived,” Martin Gardner has called him). Our guide to the puzzles is the Sorcerer, who resides on the Island of Knights and Knaves, where knights always tell the truth and knaves always lie, and he introduces us to the amazing magic—logic—that enables to discover which inhabitants are which. Then, in a picaresque adventure in logic, he takes us to the planet Og, to the Island of Partial Silence, and to a land where metallic robots wearing strings of capital letters are noisily duplicating and dismantling themselves and others. The reader’s job is to figure out how it all works. Finally, we accompany the Sorcerer on an alluring tour of Infinity which includes George Cantor’s amazing mathematical insights. The tour (and the book) ends with Satan devising a diabolical puzzle for one of Cantor’s prize students—who outwits him! In sum: a devilish magician’s cornucopia of puzzles—a delight for every age and level of ability.


Mathematics, Models, and Modality

Mathematics, Models, and Modality

Author: John P. Burgess

Publisher: Cambridge University Press

Published: 2008-02-21

Total Pages: 253

ISBN-13: 113947054X

DOWNLOAD EBOOK

John Burgess is the author of a rich and creative body of work which seeks to defend classical logic and mathematics through counter-criticism of their nominalist, intuitionist, relevantist, and other critics. This selection of his essays, which spans twenty-five years, addresses key topics including nominalism, neo-logicism, intuitionism, modal logic, analyticity, and translation. An introduction sets the essays in context and offers a retrospective appraisal of their aims. The volume will be of interest to a wide range of readers across philosophy of mathematics, logic, and philosophy of language.


The Book of Immortality

The Book of Immortality

Author: Adam Gollner

Publisher: Simon and Schuster

Published: 2014-09-30

Total Pages: 416

ISBN-13: 1439109435

DOWNLOAD EBOOK

An exploration of one of the most universal human obsessions charts the rise of longevity science from its alchemical beginnings to modern-day genetic interventions and enters the world of those whose lives are shaped by a belief in immortality.


The Final Battles of the Petersburg Campaign

The Final Battles of the Petersburg Campaign

Author: A. Wilson Greene

Publisher: Univ. of Tennessee Press

Published: 2008

Total Pages: 594

ISBN-13: 1572336102

DOWNLOAD EBOOK

The Petersburg Campaign was what finally did it. After months of relentless conflict throughout 1864, the Confederate army led by General Robert E. Lee holed up in the Virginia city of Petersburg as Lieutenant General Ulysses S. Grant's vastly superior forces lurked nearby. The brutal fighting that took place around the city during 1864 and into 1865 decimated both armies as Grant used his manpower advantage to repeatedly smash the Confederate lines, a tactic that eventually resulted in the decisive breakthrough that ultimately doomed the Confederacy. The breakthrough and the events that led up to it are the subject of A. Wilson Greene's groundbreaking book The Final Battles of the Petersburg Campaign, a significant revision of a much-praised work first published in 2000. Surprisingly, despite Petersburg's decisive importance to the war's outcome, the campaign has received scant attention from historians. Greene's book, with its incisive analysis and compelling narrative, changes this, offering readers a rich account of the personalities and strategies that shaped the final phase of the fighting. Greene's ultimate focus on the climatic engagements of April 2, 1865, the day that Confederate control of Richmond and Petersburg was effectively ended. The book tells this story from the perspectives of the two army groups that clashed on that day: the Union Sixth Corps and the Confederate Third Corps. But Greene does more than just recount the military tactics at Petersburg; he also connects the reader intimately with how the war affected society and spotlights the soldiers, both officers and enlisted men, whose experiences defined the outcome. Thanks to his extensive research and consultation of rare source materials, Greene gives readers a vibrant perspective on the campaign that broke the Confederate spirit once and for all. A. Wilson Greene is president of Pamplin Historical Park & The National Museum of the Civil War Soldier near Petersburg, Virginia. He also has taught at Mary Washington College and worked for sixteen years with the National Park Service.