Positive Effects
- "Logic" is Aristotle's is his best contribution to science and philosophy
- Aristotle's logical system is his answer to the structure of language
- While making logic Aristotle made up some of his own terminology
Syllogisms are structures of sentences each of which can meaningfully be called true or false: assertions. in Aristotle's terminology. According to Aristotle, every such sentence must have the same structure: it must contain a subject and predicate and must either affirm or deny the predicate of the subject. Thus, every assertion is either the affirmation or the denial of a single predicate of a single subject.