Terms of simple categorical syllogize
Medium term must be distributed in at least one of the parcels.
The term is not distributed in the premise should not be distributed in the conclusion.
The number of negative assumptions must be equal to the number of negative opinions.
In every syllogism must be only three terms.
Distribution of terms in simple attributive utterances
The subject is always divided in a general comment, and never distributed in a private comment.
Predicate is always distributed in adverse judgments, it is distributed in the affirmative when the volume R <= S.
As a predicate, in some cases, may be subject.
Figures and modi
Figures syllogize called syllogize different location in the medium term assumptions: Figure 1 Figure 2 Figure 3 Figure 4
Great premise: M-P P-M M-P P-M
The smaller parcel: S-M S-M M-S M-S
Conclusion: S-P S-P S-P S-P
Each figure with the modi - syllogize differing quantity and quality of premises and conclusions. Modus have studied medieval schools, and for the correct mode of each figure was invented by mnemonic names: Figure 1 Figure 2 Figure 3 Figure 4
Barbara Cesare Darapti Bramantip
Celarent Camestres Disamis Camenes
Darii Festino Datisi Dimaris
Ferio Baroco Felapton Fesapo