Logic is the study of correct reasoning. It includes both formal and informal logic. Formal logic is the study of deductively valid inferences or logical truths. It examines how conclusions follow from premises based on the structure of arguments alone, independent of their topic and content. Informal logic is associated with informal fallacies, critical thinking, and argumentation theory. Informal logic examines arguments expressed in natural language whereas formal logic uses formal language. When used as a countable noun, the term "a logic" refers to a specific logical formal system that articulates a proof system. Logic plays a central role in many fields, such as philosophy, mathematics, computer science, and linguistics.
Logic studies arguments, which consist of a set of premises tha...
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Argument terminology, see: Hurley, Patrick J. (2015). A concise introduction to logic (Twelfth ed.)....
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Bust of Aristotle. Marble, Roman copy after a Greek bronze original by Lysippos from 330 BC; the ala...
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Depicted person: AVICENNE / AVICENNA / IBN SINA
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Example of formalizing an English sentence into first-order logic.
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An icon to represent "global thinking".
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William of Occam
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Schema for modus ponens done in LaTeX
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People icon
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Bertrand Russell 1907
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From http://hypernews.ngdc.noaa.gov
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Square of opposition
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diagram of a transistor AND gate. Reference: http://hyperphysics.phy-astr.gsu.edu/hbase/electronic/a...
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Bronze bust sculpture of the German mathematician, logician and philosopher Gottlob Frege (1848-1925...
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Title: Young America's dilemma / Dalrymple.
Abstract/medium: 1 print : chromolithograph.
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