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Expressio Unius Est Exclusio Alterius
expressio unius est exclusio alterius n
[New Latin, the explicit mention of one (thing) is the exclusion of another]
: a principle in statutory construction: when one or more things of a class are expressly mentioned others of the same class are excluded
Source: Merriam-Webster's Dictionary of Law ©1996. Merriam-Webster, Incorporated. Published under license with Merriam-Webster, Incorporated.