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Concept
Logos
Summary
Logos (UKˈloʊɡɒs,_ˈlɒɡɒs, USˈloʊɡoʊs; lógos) is a term used in Western philosophy, psychology and rhetoric; it connotes an appeal to rational discourse that relies on inductive and deductive reasoning. Aristotle first systemised the usage of the word, making it one of the three principles of rhetoric. This specific use identifies the word closely to the structure and content of text itself. This specific usage has then been developed through the history of western philosophy and rhetoric.
The word has also been used in different senses along with rhema. Both Plato and Aristotle used the term logos along with rhema to refer to sentences and propositions. It is primarily in this sense the term is also found in religion.
lógos is related to légō which is cognate with Legus. The word derives from a Proto-Indo-European root, *leǵ-, which can have the meanings "I put in order, arrange, gather, choose, count, reckon, discern, say, speak". In modern usage, it typically connotes the verbs "account", "measure", "reason" or "discourse".. It is occasionally used in other contexts, such as for "ratio" in mathematics.
The Purdue Online Writing Lab clarifies that logos is the appeal to reason that relies on logic or reason, inductive and deductive reasoning. In the context of Aristotle's Rhetoric, logos is one of the three principles of rhetoric and in that specific use it more closely refers to the structure and content of the text itself.
Logos became a technical term in Western philosophy beginning with Heraclitus ( 535- 475 BC), who used the term for a principle of order and knowledge. Ancient Greek philosophers used the term in different ways. The sophists used the term to mean discourse. Aristotle applied the term to refer to "reasoned discourse" or "the argument" in the field of rhetoric, and considered it one of the three modes of persuasion alongside ethos and pathos. Pyrrhonist philosophers used the term to refer to dogmatic accounts of non-evident matters.
Official source
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