Disamis

Disamis

a mnemonic word to represent a syllogistic argument in the third figure, in which there is one particular affirmative and one universal affirmative premise and a particular affirmative conclusion.
See also: Logic
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These deductions are all particular, whether affirmative (see Darapti, Disamis, and Datisi) or privative (see Felapton, Ferison, and Bocardo).
The third deduction of the third figure is Disamis, whose premises are particular and universal: (50)
Second, he inverts the two premises, so that Disamis (3.
To complete the reduction, the conclusion of Darii, that is, "some P is R," has to be converted into "some R is P," which is the conclusion of Disamis.
The fourth incomplete deduction is Datisi, using the same premises of Disamis, but in the inverted order: (51)