Adjective
Alt. of Syllogistical
Source: Webster's dictionarysyllogistic reasoning Source: Internet
Aristotle explicitly formulated the law of the excluded middle and law of non-contradiction in justifying his system, although these laws cannot be expressed as judgments within the syllogistic framework. Source: Internet
Eventually dissatisfied, by 1900 he distinguished them once and for all and also wrote that he now took the syllogistic forms and the doctrine of logical extension and comprehension as being less basic than he had thought. Source: Internet
Ockham was probably the first logician to treat empty terms in Aristotelian syllogistic effectively; he devised an empty term semantics that exactly fit the syllogistic. Source: Internet
Galen also rejected Stoic propositional logic and instead embraced a hypothetical syllogistic which was strongly influenced by the Peripatetics and based on elements of Aristotelian logic. Source: Internet
Logic Euler is also credited with using closed curves to illustrate syllogistic reasoning (1768). Source: Internet