LessonsDefinition and Its Four Forms: Complete/Incomplete Essential and Descriptive DefinitionsQuiz

The two forms of incomplete essential definition do not supply exactly the same amount of information, although both share the same classification.

“Rational body” provides a remote genus and the proximate differentia, but omits the proximate genus “animal.”
“Rational” provides only the differentia and does not name any genus.

Incomplete does not mean false or useless. It means that the structure required for the complete essential definition has not been fully supplied.

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Two ways an essential definition can be incomplete

Definition and Its Four Forms: Complete/Incomplete Essential and Descriptive Definitions

The two forms of incomplete essential definition do not supply exactly the same amount of information, although both share the same classification.

“Rational body” provides a remote genus and the proximate differentia, but omits the proximate genus “animal.”
“Rational” provides only the differentia and does not name any genus.

Incomplete does not mean false or useless. It means that the structure required for the complete essential definition has not been fully supplied.