| Singular | Plural | |
|---|---|---|
| Nominativ | syllogismus, syllogismus | syllogismi, syllogismi |
| Genitiv | syllogismi, syllogismi | syllogismorum, syllogismum, syllogismum, syllogismorum |
| Dativ | syllogismo, syllogismo | syllogismis, syllogismis |
| Akkusativ | syllogismom, syllogismom, syllogismum, syllogismum | syllogismos, syllogismos |
| Ablativ | syllogismo, syllogismo | syllogismis, syllogismis |
| Vokativ | syllogisme, syllogisme | syllogismi, syllogismi |