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WordNet
law of parsimony

n. the principle that entities should not be multiplied needlessly; the simplest of two competing theories is to be preferred [syn: Occam's Razor, Ockham's Razor, principle of parsimony]

Usage examples of "law of parsimony".

That's really all the law of parsimony comes down to, you know, Robin: we prefer the simplest theory that fits all the facts, but nobody has ever been able to prove that it is a real law of nature.