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Description
Introduction to Logic: And to the Methodology of Deductive SciencesFirst published in Polish in 1936, this classic work was originally written as a popular scientific book one that would present to the educated lay reader a clear picture of certain powerful trends of thought in modern logic. According to the author, these trends sought to create a unified conceptual apparatus as a common basis for the whole of human knowledge. Because these new developments in logical thought tended to perfect and sharpen the
First published in Polish in 1936, this classic work was originally written as a popular scientific book -- one that would present to the educated lay reader a clear picture of certain powerful trends of thought in modern logic. According to the author, these trends sought to create a unified conceptual apparatus as a common basis for the whole of human knowledge.Because these new developments in logical thought tended to perfect and sharpen the deductive method, an indispensable tool in many fields for deriving conclusions from accepted assumptions, the author decided to widen the scope of the work. In subsequent editions he revised the book to make it also a text on which to base an elementary college course in logic and the methodology of deductive sciences. It is this revised edition that is reprinted here.
Part One deals with elements of logic and the deductive method, including the use of variables, sentential calculus, theory of identity, theory of classes, theory of relations and the deductive method. The Second Part covers applications of logic and methodology in constructing mathematical theories, including laws of order for numbers, laws of addition and subtraction, methodological considerations on the constructed theory, foundations of arithmetic of real numbers, and more. The author has provided numerous exercises to help students assimilate the material, which not only provides a stimulating and thought-provoking introduction to the fundamentals of logical thought, but is the perfect adjunct to courses in logic and the foundation of mathematics.
Binding Type: Paperback
Publisher: Dover Publications
Published: 03/27/1995
ISBN: 9780486284620
Pages: 272
Weight: 0.64lbs
Size: 8.44h x 5.43w x 0.53d
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4.6 ★★★★★
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Product Reviews
★★★★★ 3
Nice for cooling but not so cool with staying on the bed
Color: Black Pinstripe, Size: King(108"x90")
Definitely cooled while sleeping however due to the silky fabric it did not stay on the bed and often ended up on the floor by morning.
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Reviewed in the United States on May 7, 2026
★★★★★ 4
Pretty nice blanket
First off I have to say that this is not exactly a cooling blanket. It is true that when you first get under it, it does feel cool. Shortly thereafter though, wherever the blanket makes contact with you it warms up to your body temperature, so it doesn’t remain cool. Still, I just moved my foot to a different area and hit a cool pocket, so it has its moments. I have to say I really like the weight of this blanket. It’s so hard to find a good blanket, that is not that thick, It is thin, which is exactly what I was looking for since I live in Florida. One side of the blanket is the “cooling“ side which is plain gray, and on the other side is a gray and white striped pattern. I’m not really crazy about the pattern to be honest. I wish this blanket came in more colors or patterns. The blanket fit my queen bed nicely - not too big or too small. For what it is, I’m not really sure I would say it’s good value for the money, but I do like this blanket.
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Reviewed in the United States on March 20, 2026
★★★★★ 5
Surprisingly, effective cooling blanket
When I first saw this cooling blanket available, I grabbed one right away. I had purchased a cooling blanket for my grandfather last summer that was fantastic but very expensive, so I was curious whether this one would actually compare considering the price difference.
Right out of the package, I could immediately feel that it was different from a normal comforter. The fabric itself feels noticeably cool when you touch it, which honestly caught me off guard in a good way.
The gray version I have features a striped design on one side and a solid gray color on the reverse. I love that it isn’t just plain white like so many cooling blankets tend to be. The pattern adds some visual interest while still matching pretty much any bedroom setup.
The fabric is incredibly soft and smooth against the skin. The brand says it’s made with Ice Toweling technology fabric, which supposedly works by absorbing body heat through the fibers’ molecular structure. I’m not totally sure how that works scientifically, but I can definitely tell you the result is real because the blanket does feel cooler when you sleep under it.
Something else I appreciate is that despite being silky smooth, it doesn’t constantly slide off the bed. I was expecting it to behave like a satin sheet, but it actually stays in place surprisingly well and its true to size.
Cleaning is straightforward. They recommend air drying the blanket to preserve the cooling fibers, which seems like a reasonable precaution. I would probably treat it like a delicate fabric just to keep it in good shape long term.
All things considered, I’m really impressed with this blanket. It’s soft, comfortable, genuinely cooling, and a great value compared to some of the pricey alternatives out there. If you tend to overheat while sleeping, this is definitely worth considering.
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Reviewed in the United States on March 9, 2026
★★★★★ 5
The price was great
Style: Original, Size: Standard/Queen
I couldn’t believe how comfortable they are
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Reviewed in the United States on January 2, 2026
★★★★★ 4
Stay Puft
Style: Original, Size: Standard/Queen
Cooler than most pillows and doesn’t go flat. Still gets warm throughout the night.
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Reviewed in the United States on August 8, 2025