Definitions

from The Century Dictionary.

  • noun A syllogism of which the conclusion is a premise of another.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun logic A syllogism that is preliminary or logically essential to another syllogism.
  • noun logic The conclusion of such a syllogism, which becomes a premise of the following syllogism.

Etymologies

from Wiktionary, Creative Commons Attribution/Share-Alike License

pro- +‎ syllogism

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Examples

  • If F and D are identical, A will belong to none of the Es by a prosyllogism: for since the negative proposition is convertible, and F is identical with D, A will belong to none of the Fs, but F belongs to all E.

    Prior Analytics Aristotle 2002

  • If we use the third figure, we shall take as premisses, all E is B, some E is not C, and this premiss again will be proved by a similar prosyllogism.

    Posterior Analytics Aristotle 2002

  • If F and D are identical, A will belong to none of the Es by a prosyllogism: for since the negative proposition is convertible, and F is identical with D, A will belong to none of the Fs, but F belongs to all E.

    PRIOR ANALYTICS Aristotle 1989

  • Now as this rule may itself be subjected to the same process of reason, and thus the condition of the condition be sought (by means of a prosyllogism) as long as the process can be continued, it is very manifest that the peculiar principle of reason in its logical use is to find for the conditioned cognition of the understanding the unconditioned whereby the unity of the former is completed.

    The Critique of Pure Reason Immanuel Kant 1764

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