Logic

  1. Definiendum
    In any definition, the word or symbol being defined.
  2. Definiens
    In any definition, a symbol or group of symbols that is said to have the same meaning as the definiendum.
  3. Stipulative Definition
    A definition in which a new symbol is introduced to which some meaning is arbitrarily assigned; as opposed to a lexical definition. A stipulative definition cannot be correct or incorrect.
  4. Lexical Definition
    A definition that reports the meaning that the definiendum already has. A lexical definition can be true or false.
  5. Precising Definition
    A definition devised to eliminate ambiguity or vagueness by delineating a concept more sharply.
  6. Theoretical Definition
    A definition that encapsulates an understanding of the theory in which that term is a key element.
  7. Persuasive Definition
    A definition formulated and used to resolve a dispute by influencing attitudes or stirring emotions, often relying upon the use of emotive languages.
  8. Extension
    The collection of all the objects to which a term may correctly be applied.
  9. Intension
    The attributes shared by all and only the objects in the class that a given term denotes; the connotation of the term.
  10. Denotative Definition
    A definition that identifies the extension of a term, by (for example) listing the members of the class of objects to which the term refers. An extensional definition.
  11. Ostensive Definition
    A kind of denotative definition in which the objects denoted by the term being defined are referred to by means of pointing, or with some other gesture; sometimes called a demonstrative definition.
  12. Quasi-ostensive Definition
    A variety of denotative definition that relies upon gesture, in conjunction with a descriptive phrase.
  13. Subjective Intension
    The set of all attributes that the speaker believes to be possessed by objects denoted by a given term.
  14. Objective Intension
    The total set of attributes shared by all the objects in the extension of a term.
  15. Conventional Intension
    The commonly accepted intension of a term; the criteria generally agreed upon for deciding, with respect to any object whether it is part of the extension of that term.
  16. Synonymous Definition
    A kind of connotative definition in which a word, phrase or symbol is defined in terms of another word, phrase or symbol that has the same meaning and is already understood.
  17. Operational Definition
    A kind of connotative definition that states that the term to be defined is correctly applied to a given case if and only if the performance of specified operations in that case yields a specified result.
  18. Definition by Genus and Difference
    A type of connotative definition of a term that first identifies the larger class ("genus") of which the definiendum is a species or subclass, and then identifies the attribute ("difference") that distinguishes the members of that species from members of all other species in that genus.
Author
Tflexser
ID
167623
Card Set
Logic
Description
Ch3 Terms
Updated