And of course something so vague can hardly be deducible on any view of deduction. Change ), You are commenting using your Google account. Why can't uniformity of nature (in principle) be proven deductively? site design / logo © 2020 Stack Exchange Inc; user contributions licensed under cc by-sa. Its exact formulation and justification is the problem of induction. They are using a more stringent criterion for necessity than is the common use. His contention has not been firmly settled, and it is very difficult to foresee a solution to what is now known as “Hume’s Problem” in the near future. Change the color of sub-expression when the whole expression evaluates to a different expression. What does commonwealth mean in US English? A thought. The principle seems to be presupposed in some form both by the reliance we put upon scientific prediction and by the certainties of everyday life. Change ), You are commenting using your Twitter account. That said, and though we should today allow contingent connections that are neither probabilistic nor causal, there are few points at which the distinction is not clear". Why is Soulknife's second attack not Two-Weapon Fighting? However, the UN assumption cannot be proven deductively (at least not yet! Then people will appreciate your leadership. Is linear filtering possible on depth textures in OpenGL? Does this thinking stand up? Are vintage devices compatible with iCloud? The entire concept dissolves when one attempts to state it more precisely, and it is unclear what it even means for it to be "necessary", see What are the critiques of the “we might as well assume it” solution to the problem of induction? Philosophy Stack Exchange is a question and answer site for those interested in the study of the fundamental nature of knowledge, reality, and existence. The assertion is that the laws of physics do not change, for example, from object to object. But now that we have articulated it and are plainly aware of its constraints on our reasoning, let us get on with physics. Hume calls this assumption the assumption of the Uniformity of Nature (UN). Change ), You are commenting using your Facebook account. By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy. Hume certainly did not have in mind something like analytic necessity of Carnap (although it might be the closest modern analog) or possible worlds necessity of Kripke et al. Mentor added his name as the author and changed the series of authors into alphabetical order, effectively putting my name at the last. Hume on the “Principle of the Uniformity of Nature” (continued) We expect nature to be uniform: We believe that patterns of regularity observed in the past will continue to hold into the future. See the link below for more info. Friends, Are We Not Philosophers: Is This Place a Bazaar or a Cathedral? This is called our belief in the “Principle of the Uniformity of Nature” (PUN). Thank you for sharing this information that is actually helpful.ufgop.orgufgop.org, Thank you for sharing your thoughts. It only takes a minute to sign up. Although I intuitively agree with the conclusion that this principle cannot be proved deductively, the explanation seems kind of lacking. Obviously, this reasoning is not perfectly sound, but this is how physicists (and all other scientists) reason. I've been reading about the problem of induction and I have trouble understanding the argument for nature's uniformity being impossible to prove deductively. Non-uniform nature is certainly "conceivable", so by Hume's lights the uniformity (and hence induction) can not be necessary. Making statements based on opinion; back them up with references or personal experience. Change ). Can you have a Clarketech artifact that you can replicate but cannot comprehend? However, the UN assumption cannot be proven deductively (at least not yet! Why Is an Inhomogenous Magnetic Field Used in the Stern Gerlach Experiment? The assertion is that the laws of physics do not change, for example, from object to object. Quick link too easy to remove after installation, is this a problem? #behindwww.inspgift.com, I recently came across your blog and have been reading along. But there is a bigger problem with deducing "uniformity" under any notion of deduction or necessity. How does linux retain control of the CPU on a single-core machine? Was the theory of special relativity sparked by a dream about cows being electrocuted? ( Log Out /  To subscribe to this RSS feed, copy and paste this URL into your RSS reader. ( Log Out /  I don't know what to say except that I have enjoyed reading. It is better to lead from behind and to put others in front, especially when you celebrate victory when nice things occur. The 18th century philosopher David Hume raised issue with inductive logic, which has fundamental ramifications for science. In particular, the uniformities observed in the past will hold for the present and future as well. Does Karl Popper's work address the Principle of Uniformity of Nature? Only under the assumption of UN does reasoning inductively actually work. It may be uniform in a deeper way, So I'd say the Nature is bound to be uniform in that it must obey the laws of Nature at all times, and if the local laws vary this would not mean that Nature is not uniform. Of course, syllogistic is a pretty weak system of logic, by which not much can be deduced even in elementary mathematics, and conceivability and uniformity are pretty vague notions. ( Log Out /  Therefore all bodies obey Newton’s law of gravitation. Only under the assumption of UN does reasoning inductively actually work. Importantly, there is no sound deductive argument to suggest that all bodies should necessarily obey Newton’s law of gravitation. What are the critiques of the “we might as well assume it” solution to the problem of induction? its antecedent is consistent with the denial of its consequent. Non-uniform nature is certainly "conceivable", so by Hume's lights the uniformity (and hence induction) can not be necessary. Thanks for contributing an answer to Philosophy Stack Exchange! deductively is a necessary truth, and the principle is not necessary; How do rationalists justify the scientific method. What was the most critical supporting software for COBOL on IBM mainframes? Very interesting topics, I hope the incoming comments and suggestion are equally positive. ), and therefore there is no reason to suppose that the laws of physics might not look totally different, say, in another part of the universe that we have yet to observe. Why can't it be a necessary a truth ? I will keep visiting this blog very often..rachelle madrigalwww.imarksweb.org, God allows us to experienced pain and failure for us to become a better person. PUN is essential to science. In a multiwire branch circuit, can the two hots be connected to the same phase? The quoted passage is part of an exposition of Hume's original argument. I truly appreciate your effort in sharing this informative articles. This is called our belief in the “Principle of the Uniformity of Nature” (PUN). ( Log Out /  Convert string to date format that can be used in a craft.entries tag. For the standard logical notion of necessity, something is necessary if it is true in every possible world. The conformity of Nature to laws in the local world we know may not extend to all of existence but this in itself would not mean it is not uniform. Visit my site for more information.triciajoy.comwww.triciajoy.com, Love it! 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