History of Philosophy Test #2

History of Philosophy Test #2 - Aristotle Logic Aristotle...

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Aristotle Logic - Aristotle invented formal logic. He also came up with the idea of separate sciences. For him there was a close connection between logic and science, inasmuch as he considered logic to be an instrument with which to formulate language properly when analyzing what science involves. The Categories and the Starting Point of Reasoning - Before we can logically demonstrate or prove something, we must have a clear starting point for our reasoning process. For one thing we must specify the subject matter we are discussing the specific “kind” of thing we are dealing with. - Whenever we think of some distinct thing, we think of a subject and its predicates that is, of some substance and its accidents. - Aristotle proposed at least nine categories (that is, predicates) that can be connected with a substance. o Quantity o Quality o Relation o Place o Date o Posture o Possession o Action o Passivity - We can consider substance itself as a category, in which case a substance is a predicate. - Aristotle did not consider these categories or these classifications as artificial creations of the mind. He thought that they were actually in existence outside the mind and in things. Things, he thought, fell into various classifications by their very nature because they are. - There are always predicates (categories) related to subjects (substances). - What Aristotle wants to underscore is that there is a sequence that leads to “science.” This sequence is, first of all, the existence of things and their processes; second, our thinking about things and their behavior; and, finally, the transformation of our thought about things into words. Language is the instrument for formulating scientific thought. Logic, then, is the analysis of language, the process of reasoning, and the way language and reasoning are related to reality. The Syllogism - Aristotle develops a system of logic, based on the syllogism, which he defines as a “discourse in which certain things being stated, something other than what is stated follows of necessity from their being so.” - The first two statements are premises, which serve as evidence for the third statement, which is conclusion. - Although Aristotle’s theory of the syllogism is an effective tool for determining valid relationships between premises and conclusions, his aim was to provide an
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instrument for scientific demonstration. - Aristotle recognized that it is entirely possible to employ the syllogism consistently without necessarily arriving at scientific truth. This would happen of the premises did not rest on true assumptions that is, if they did not reflect reality. -
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This note was uploaded on 06/14/2010 for the course PL 20166 taught by Professor Collins during the Spring '10 term at Lipscomb.

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History of Philosophy Test #2 - Aristotle Logic Aristotle...

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