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Description
The Lady or the Tiger?: And Other Logic Puzzles"Another scintillating collection of brilliant problems and paradoxes by the most entertaining logician and set theorist who ever lived." Martin Gardner "Smullyan is not your run of the mill puzzlemeister; he polishes up old chestnuts, spins variations on a theme, and peoples his logical world with a delightful cast of characters." Science 82 "I believe Ray Smullyan to be the Lewis Carroll of our times. His little books of logic puzzles will be
"Another scintillating collection of brilliant problems and paradoxes by the most entertaining logician and set theorist who ever lived." -- Martin Gardner"Smullyan is not your run-of-the-mill puzzlemeister; he polishes up old chestnuts, spins variations on a theme, and peoples his logical world with a delightful cast of characters." -- Science 82
"I believe Ray Smullyan to be the Lewis Carroll of our times. His little books of logic puzzles will be remembered long after most of us are forgotten." -- Peter Denning, Chairman of the Computer Science Department, Naval Postgraduate School
"You may experience small frissons of delight as you follow Smullyan into the dizzying heights of G del's proof and the very nature of proof, truth, and logic in mathematics." -- Kirkus Reviews
Discover scintillating new perspectives on the principles of mathematical logic with this puzzle treasury. Inspired by the classic tale of a prisoner's choice between two doors, these whimsically themed challenges allow readers to base their decisions on logic rather than luck. Nineteen chapters advance from relatively simple puzzles and meta-puzzles to highly complex paradoxes involving probability, time, and change. The author, a well-known philosopher and magician as well as a celebrated mathematician and logician, was acclaimed by The New York Times as "a master at translating difficult ideas into stories and puzzles that require no formal background, only patience and a passion to learn."
Binding Type: Paperback
Publisher: Dover Publications
Published: 04/23/2009
ISBN: 9780486470276
Pages: 240
Weight: 0.57lbs
Size: 8.78h x 5.17w x 0.49d
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4.2 ★★★★★
Based on 18 reviews
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Product Reviews
★★★★★ 4
it's a utility screen
Color: Black, Size: 3-Panel
It's a basic, utilitarian screen. It's what I expected it to be. Assembly isn't hard, but it does require two people when stretching the fabric between the poles. I got it to use in a closet to separate the water heater from the washer/dryer, so it'll be perfect for that. Pros: it's opaque and tall (my 6'4" husband can't see over it unless he is standing against it) and I like the ability for the three pieces to stand separately of each other. Cons: it's flimsy. It wobbles and will tip over easily.
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Reviewed in the United States on December 9, 2022
★★★★★ 5
Great for the price
The item is great bit I wish it were a bit more sturdy and it folded flat. It folds into a square so it does take up some room when it's not in use.
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Reviewed in the United States on April 17, 2021
★★★★★ 1
Cheap, screw holes don't line up, screen is to short, and bars take WD-40 and a mallet
This has been my worst purchase on Amazon ever. DO NOT BUY. My first issue was that bars #4 and #5 would not go together, I ended up buying WD-40 and a mallet and that kind of got them together. Now I went to but the screen on (which is almost see thought) and the screen is to short. I can't attached the bottom bar to the tall bar. The screw hole is in the wrong spot, so the screen is not secure. No amount of pulling on the screen will make it grown .25" longer. Since I can't get the bars secure the walls are not steady and fall over easily. The feet did go together very nice. I can't return them according to Amazons policy. I bought 2 sets. I'm not going to try to build the other set I have. And I can't take apart the first set, since the bars are so tightly together. Also the polls have rust on them.
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Reviewed in the United States on December 10, 2023
★★★★★ 3
Very Poor Built Quality
Color: Black, Size: 3-Panel
They use cheap tarp like cloth that you might find on a tent, so it is not suitable as a teleconferencing background without blur applied. The legs are flimsy and lack rubber feet, so it will scratch floors. The tubing is flimsy and very hard to move and adjust. This is only good if you are setting it up somewhere like a gym or a garage.
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Reviewed in the United States on January 12, 2025
★★★★★ 5
Great separator for room.
My kids love it. It separates their half of the room.
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Reviewed in the United States on February 25, 2025