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Composition / causes / forces / Physics / Cartwright: E.g. mix of electromagnetics and gravity. - Vector addition: is a calculation! - It is not nature, what "adds" the forces - because the "component forces" are not there! - MillVs: the partial forces exist. - CartwrightVsMill: Partial forces do not exist - not even - "partial movement towards the north and the east" where the body moves to the northeast. - I 61 solution / Cartwright: we have to give up the "facts-view": In the vector addition causal forces are added - no physical forces - then not "behavior" of the body, but "ability" to behave" - problem: so easily the "facts" cannot be abandoned.
How the laws of physics lie Oxford New York 1983