Extension and Intension
Distinguish the collective terms from the proper names in the following table.
Indicate the denotation and connotation of each one of the following terms.
Arrange the following terms in decreasing order, according to their intension:
narrative, fiction, literary work, writing, psychological fiction.
U.S.A. inhabitant, human being, New Yorker, North American, inhabitant of the Americas.
Arrange the following terms in decreasing order, according to their extension.
vertebrate, Siamese, animal, cat, mammal.
Congress member, citizen over 21, elected official, House of Representative member.
Define some of the following terms by means of proximate genus and specific differentia, using as genus words from the list itself. Use as definiendum or genus the largest possible number of words proposed, choosing freely any necessary specific differentiae.
In the following definitions, indicate the rule or rules broken by each:
Duty is the concept of an action to which one is obliged.
"Wisdom is something different from everything else". (Heraclitus, Frag. 108)
An airplane is a machine used for flying.
A scholar is a person associated to a school.
Man is an animal with musical sensitivity.