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In most cases saying that something does ‘not’ have a particular characteristic is not the same as saying that it ‘does’ have the opposite characteristic.

Exceptions to the “most” are situations where definitions are such that something can only be one or the other (either/or).

Four examples of this:

• either “doctored” OR “undoctored

• either “light”-related OR non-“light”-related

• either “playing in the championship game” OR “not playing in the championship game”

• either “pregnant” OR “not pregnant.”