Aristotle and logic
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For everyone
Aristotle was the first philosopher to study systematically the rules of valid reasoning; his theory of the syllogism was the basis of logic for about two thousand years. His writings on physics, biology, ethics and politics earned him the title "al-Muʿallim al-Awwal" (the First Teacher) in the Islamic world. Some of his views on physics, such as heavier bodies falling faster, were later challenged by experiment.
For specialists
The Prior Analytics in the Organon studies the three-term syllogism and its valid forms (e.g. Barbara). Aristotelian logic was extended by the predicate logic of Frege (1879) and Russell; syllogistic cannot express relational statements with multiple quantifiers. Aristotle's theory of four causes (material, formal, efficient, final) deeply influenced Islamic and Latin scholastic thought.
Claims
- In a valid syllogism, if the premises are true the conclusion is necessarily true.[1]
Positions
- Modern logicians
- Syllogistic is not sufficient to express all mathematical reasoning; predicate logic is more general.[1]
Connections
Sources
- EncyclopediaAristotle's Logic. Stanford Encyclopedia of Philosophyplato.stanford.eduarchive
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Cite this page
Athena contributors. (2026). Aristotle and logic. Athena: The tree of human knowledge. Retrieved November 1, 2026, from https://latifkedi.github.io/athena/en/d/aristoteles/
@misc{athena_aristoteles,
title = {Aristotle and logic},
author = {{Athena contributors}},
year = {2026},
howpublished = {\url{https://latifkedi.github.io/athena/en/d/aristoteles/}},
note = {Athena: The tree of human knowledge. Accessed: 2026-11-01}
}Added: September 27, 2026 · Last changed: September 28, 2026 · Page history