Philosophy Lexicon of Arguments

Principles, philosophy of science: physical principles are not the same as laws of nature. Rather, laws can be gained from principles or traced back to principles. Examples are the principle of the shortest time, the principle of the smallest effect, the uncertainty principle. See also theories, laws of nature, laws, natural constants.
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Duhem I 285
Principles/Poincaré/Duhem: Poincaré claims regarding the principles of mechanics: never will a new experiment lead to abandon them. The operation which is to compare them with the facts has no meaning.
E.g. principle of inertia. You can only give it a meaning if you consider a certain relationship point as chosen ...
See Principles/Duhem.
I 289
Duhem: It would only lead to public places, if one were to say that the conditions were almost commensurable: for everything in the world is almost commensurable. Any arbitrary incommensurable relationship is always approximately commensurable.
It would be absurd to want to subject certain principles of mechanics to the direct control of the experiment. Does it follow that these hypotheses cannot be achieved by experimental contradictions? No!
Principles/Poincaré: "The experiment can build up the principles of mechanics, but not destroy them".
> Principles/Duhem.

Duh I
P. Duhem
Ziel und Struktur der physikalischen Theorien Hamburg 1998

> Counter arguments against Poincaré

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Ed. Martin Schulz, access date 2017-05-27