解説Modus Datisi.svg	One of the 24 syllogisms listed below. The deduction is represented by a 3 circle Venn diagram. Premises and the logical consequence are represented by 2 circle Venn diagrams. The left circle stands for S, the top circle for M, and the right circle for P. Areas marked in black are empty - there are no elements in these areas. In red areas there is at least one element, represented by an x. White areas are not important for the deduction, and nothing is told about them. There may be elements or not. This SVG was created with Inkscape.  This SVG file was uploaded with Commonist.
原典	投稿者自身による著作物
作者	Watchduck You can name the author as "T. Piesk", "Tilman Piesk" or "Watchduck".
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その他のバージョン	Printable version of this set: Syllogism diagrams.pdf

This table shows 14 essentially different syllogisms represented by their Euler diagrams in the top row.
Below it shows all 24 syllogisms represented by Venn diagrams, ordered by figure, in the rows below.

Syllogisms with the same diagrams are in the same column.
The border between columns is left out when the diagrams are each others reflections.
Syllogisms with affirmative conclusions are on the left side, and those with negative conclusions are on the right side.

1

Barbara

Barbari

Darii

Ferio

Celaront

Celarent

2

Festino

Cesaro

Cesare

Camestres

Camestros

Baroco

3

Darapti

Datisi

Disamis

Felapton

Ferison

Bocardo

4

Bamalip

Dimatis

Fesapo

Fresison

Calemes

Calemos