Definitions

from The Century Dictionary.

  • noun The mnemonic name given by Petrus Hispanus to that mood of the third figure of syllogism in which the two premises are universal and affirmative and the conclusion is particular and affirmative.

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  • "The mnemonic name given by Petrus Hispanus to that mood of the third figure of syllogism in which the two premises are universal and affirmative and the conclusion is particular and affirmative. These distinctions of quantity and quality are indicated by the three vowels of the word, a-a-i. The letter p indicates that the reduction to direct reasoning is to be performed by converting by accident the minor premise, and the initial d shows that the direct mood so reached is darii. The following is an example of a syllogism in darapti: All griffins breathe fire; but all griffins are animals; therefore, some animals breathe fire. Some logicians deny the validity of this mood."

    --CD&C

    March 8, 2012