Conjectures Refutations by Popper Karl (158 results)

Paperback. Condition: Fair. 5. The item might be beaten up but readable. May contain markings or highlighting, as well as stains, bent corners, or any other major defect, but the text is not obscured in any way.

Condition: Good. Good condition. A copy that has been read but remains intact. May contain markings such as bookplates, stamps, limited notes and highlighting, or a few light stains.

Condition: very_good. Book is in very good condition and may include minimal underlining highlighting. The book can also include "From the library of" labels. May not contain miscellaneous items toys, dvds, etc. . We offer 100% money back guarantee and 24 7 customer service.

Paperback. Condition: Fair. No Jacket. Readable copy. Pages may have considerable notes/highlighting. ~ ThriftBooks: Read More, Spend Less.

Paperback. Condition: Very Good. Conjectures and Refutations: The Growth of Scientific Knowledge This book is in very good condition and will be shipped within 24 hours of ordering. The cover may have some limited signs of wear but the pages are clean, intact and the spine remains undamaged. This book has clearly been well maintained and looked after thus far. Money back guarantee if you are not satisfied. See all our books here, order more than 1 book and get discounted shipping. .…

Soft cover. Condition: Good. some red pen underlining to the first page of the Preface. U4.

Paperback. Condition: Good. Connecting readers with great books since 1972! Used textbooks may not include companion materials such as access codes, etc. May have some wear or writing/highlighting. We ship orders daily and Customer Service is our top priority.

Paperback. Condition: Very Good. 2nd. It's a well-cared-for item that has seen limited use. The item may show minor signs of wear. All the text is legible, with all pages included. It may have slight markings and/or highlighting.

paperback. Condition: Acceptable. May have underlining, highlighting, margin notes, remainder marks, inscriptions, book plates, tears, significant wear, and/or a missing dust jacket, box, or discs. Damaged item.

Paperback. Condition: Good. One of Karl Popper's most wide-ranging and popular works, it provides the clearest statement of the fundamental idea that guided his work: that our knowledge grows by an unending process of trial and error.

Soft cover. Condition: Good. A lovely, tight, unmarked softcover in good plus condition; age toning to textblock, former owner's name written neatly in ink on front pastedown; rubbing to cover at spine. We are a brick-and-mortar store and sell our own inventory.

Paperback. Condition: Good. Underlining & notes to pages; binding cracked at pages 174-175; moderate wear to covers. 417 pages. TB 1376. Size: 5 1/2" x 8 1/2".

Paperback. Condition: Good. One of Karl Popper's most wide-ranging and popular works, it provides the clearest statement of the fundamental idea that guided his work: that our knowledge grows by an unending process of trial and error.

paperback. Condition: Acceptable. This is a damaged book. May be ex-library, water-damaged, or spine creased/broken. Acceptable, Reading copy only, with writing/markings and heavy wear. Standard-sized.

Soft cover. Condition: Very Good. No markings, attractive copy.

Paperback. Condition: Very Good. Shipped within 24 hours from our UK warehouse. Clean, undamaged book with no damage to pages and minimal wear to the cover. Spine still tight, in very good condition. Remember if you are not happy, you are covered by our 100% money back guarantee.

Trade Paperback. Condition: Good. First Harper Torchbook Edition. The trade paperback is in good condition with some minor edge wear and slight yellowing of pages, consistent with its age. The spine is intact, and there are no inscriptions or library markings. The absence of a dust jacket is typical for this format. no dust jacket present (trade paperback).…

Soft cover. Condition: Very Good.

Trade Paperbac. Condition: Used: Acceptable. Prompt Shipment, shipped in Boxes, Tracking PROVIDEDPhilosophy; Acceptable trade paperback; tips bumped; few slight nicks to cover edges; various pages ink underlining and marginalia from previous owner; prompt shipping with tracking.

Condition: Poor. This is an ex-library book and may have the usual library/used-book markings inside.This book has soft covers. Book contains pen markings. In poor condition, suitable as a reading copy. Please note the Image in this listing is a stock photo and may not match the covers of the actual item,800grams, ISBN:9780415043182.…

Condition: Poor. This is an ex-library book and may have the usual library/used-book markings inside.This book has soft covers. Book contains pen & pencil markings. In poor condition, suitable as a reading copy. Please note the Image in this listing is a stock photo and may not match the covers of the actual item,800grams, ISBN:9780415043182.…

Paperback. Condition: Very Good. The way in which knowledge progresses, and especially our scientific knowledge, is by unjustified (and unjustifiable) anticipations, by guesses, by tentative solutions to our problems, by conjectures. These conjectures are controlled by criticism: that is, by attempted refutations, which include severely critical tests. They may survive these tests; but they can never be positively justified: they can neither be established as certainly true nor even as 'probable' (in the sense of the probability calculus). Criticism of our conjectures is of decisive importance: by bringing out our mistakes it makes us understand the difficulties of the problems which we try to solve. This is how we become better acquainted with our problem, and able to propose more mature solutions: the very refutation of a theory - that is, of a tentative solution to our problem - is always a step forward that takes us nearer the truth. And this is how we can learn from our mistakes. As we learn from our mistakes our knowledge grows, even though we may never know - that is, know for certain. Since our knowledge can grow, there can be no reason here for despair of reason. And since we can never know for certain, the can be no authority here for any claim to authority, for conceit over our knowledge, or for smugness.The essays and lectures of which this book is composed apply this thesis to many topics, ranging from problems of the philosophy and history of the physical and social sciences to historical and political problems. The book has been read, but is in excellent condition. Pages are intact and not marred by notes or highlighting. The spine remains undamaged.…

Soft cover. Condition: Fair. No Jacket. Reprint; 1965; Harper Torchbooks; Trade PB in Fair Condition with tight binding; A few pages with ink marks, no highlighting to text; Light edge wear and creasing to cover; Light tanning to pages.

Paperback. Condition: New. Brand new book, sourced directly from publisher. Dispatch time is 9-10 days from our warehouse. Book will be sent in robust, secure packaging to ensure it reaches you securely.

Paperback. Condition: New.

Paperback. Condition: New. Brand new book, sourced directly from publisher. Dispatch time is 6-7 days from our warehouse. Book will be sent in robust, secure packaging to ensure it reaches you securely.

Condition: Poor. This is an ex-library book and may have the usual library/used-book markings inside.This book has soft covers. Book contains pencil markings. In poor condition, suitable as a reading copy. Please note the Image in this listing is a stock photo and may not match the covers of the actual item,750grams, ISBN:0710065086.…

Paperback. Condition: Fair. No Dustjacket. Later Edition. ISBN 9780415043182. Trade Paperback. Fifth edition. TIGHT SOUND READING COPY ONLY DUE TO highlighting and underlining throughout; otherwise average wear. No Signature.

Trade Paperback. Condition: Very Good. A VG paperback copy. 1978 reprint. General creasing and wear to wraps (colored red and purple). Former owner's ink to half-title page, and some soiling to the page edges- otherwise pages are clean and unmarked. Binding is square and tight.

Condition: very good. Gut/Very good: Buch bzw. Schutzumschlag mit wenigen Gebrauchsspuren an Einband, Schutzumschlag oder Seiten. / Describes a book or dust jacket that does show some signs of wear on either the binding, dust jacket or pages.