Nejnižší cena za posledních 60 dní: 336 Kč
Ceny a dostupnost se mohou měnit i několikrát za den. Zkontrolujte si aktuální údaje přímo v e-shopech. Všechny dostupné barvy a velikosti naleznete přímo v e-shopech.
These brand-new recreational logic puzzles provide entertaining variations on G del's incompleteness theorems, offering ingenious challenges related to infinity, truth and provability, undecidability, and other concepts. Created by the celebrated logician Raymond Smullyan, the puzzles require no background in formal logic and will delight readers of all ages.The two-part selection of puzzles and paradoxes begins with examinations of the nature of infinity and some curious systems related to G del's theorem. The first three chapters of Part II contain generalized G del theorems. Symbolic logic is deferred until the last three chapters, which give explanations and examples of first-order arithmetic, Peano arithmetic, and a complete proof of G del's celebrated result involving statements that cannot be proved or disproved. The book also includes a lively look at decision theory, better
Podpořte zdravý vývoj všech členů rodiny a vybírejte z velké nabídky hraček pro děti. Bavte se s přáteli, vyplňte svým seniorům volný čas. Hračka je často splněním dětského snu dospělého.
Kreativní, interaktivní, didaktické nebo vzdělávací hry a hračky jsou tou nejlepší přípravou na budoucnost vašich dětí. Umožněte dětem soutěžit a prosadit se v kolektivu.
These brand-new recreational logic puzzles provide entertaining variations on G del's incompleteness theorems, offering ingenious challenges related to infinity, truth and provability, undecidability, and other concepts. Created by the celebrated logician Raymond Smullyan, the puzzles require no
The Tao Is Silent Is Raymond Smullyan's beguiling and whimsical guide to the meaning and value of eastern philosophy to westerners.'To me,' Writes Smullyan, 'Taoism means a state of inner serenity combined with an intense aesthetic awareness. Neither alone is adequate; a purely passive serenity is
This completely self-contained study, widely considered the best book in the field, is intended to serve both as an introduction to quantification theory and as an exposition of new results and techniques in analytic or cut-free methods. Impressed by the simplicity and mathematical elegance of the
The Puzzle Activity Book is bursting with cool things to colour, brilliant puzzles and brain-boggling things to do. Filled with dot to dots, mazes, doodles, spot the difference, picture puzzles, and much, much more, kids can wave goodbye to boredom for
The book contains four sections: Synonyms, Antonyms, Homophones and Mixed Puzzles. Each of these sections is organised into three difficulty levels: Easy, Intermediate and Advanced. There is a handy Word Jotter and definition section on every page, which is there to ensure the child is actively
The book contains four sections: Synonyms, Antonyms, Homophones and Mixed Puzzles. Each of these sections is organised into three difficulty levels: Easy, Intermediate and Advanced. There is a handy Word Jotter and definition section on every page, which is there to ensure the child is actively
A fun craft book, based on the bestselling Monkey Puzzle, packed full of make and do activities and over 200
Put your deciphering skills and mental agility to the test with over 280 cryptic, numerical and linguistic brainteasers from Britain's best-loved radio programme, set by the world's ultimate puzzle
Adult Puzzle Book: 100 Assorted Puzzles is the perfect book for any puzzle-lover. Filled with the most popular puzzle formats in the world, this book includes Sudokus, Riddles, Crosswords, Word Searches, Codebreaking, Word Fills, and many more - with added twists to have you scratching your head
A collection of restful puzzles and brain-training activities, designed to relieve stress andinspire
The Activity Book contains writing exercises and activities, listening tasks, surveys, puzzles and games. It is designed to extend and practise language from The Pupil's
'This is a great puzzle book, for budding explorers and young adventurers. There's no better way to test your exploration skills without leaving the house ' - Levison Wood Can you pin-point the last-known location of Ernest Shackleton's Endurance? Can you help Amelia Earhart circumnavigate the
OVER 130,000 COPIES SOLD. A collection of restful puzzles and brain-training activities, designed to relieve stress and inspire creativity This is the first in a series of three books by the same author, which currently includes The Mindfulness Puzzle Book 2 and The Mindfulness Puzzle Book 3. There
'Britain's King of Puzzles'Sun A second collection of restful puzzles and brain-training activities, designed to relieve stress andinspire creativity. This book features a wide range of specially selected games to provide the perfect level of challenge and reward for your brain. Feel the tension
The book contains 35 crosswords, 27 of which cover core topics, and eight of which cover a mixture. Each crossword contains around 25
The book contains 35 crosswords, 27 of which cover core topics, and eight of which cover a mixture. Each crossword contains around 25
The second book of individual theory papers for the young beginner, lively games and puzzles to hold the young player's attention and
Solve logic puzzles AND play sleuth at the same time! This thoroughly unique book--written by the former editor of Games magazine--offers the immersive pleasure of a novel as it follows a group of friends who meet regularly to play murder-mystery games at the island home of a wealthy couple. As you
Through these 200 puzzles and challenges, you'll be able to elevate your powers of deduction, detection and general brilliance. With explanations of how Sherlock (and hopefully you) arrived at the solutions, this official puzzle book is your chance to learn how to think like
This second book in the Buster Puzzle Activity series is packed with puzzles for every need--from head-scratching mazes and spot-the-differences, to mindful dot-to-dots and number-code colouring. Puzzlers can embark on an exciting treasure hunt, follow step-by-step drawing tutorials, dive into
This is, quite simply, the best and most popular puzzle book ever published in the Soviet Union. Since its first appearance in 1956 there have been eight editions as well as translations from the original Russian into Ukrainian, Estonian, Lettish, and Lithuanian. Almost a million copies of the