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Title: Introduction to Logic

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Table of Contents:

Categorical Syllogisms

-Great Logic Branch- [woodcut by S.J. Swinbourne], _Picture_Logic_ (London: Longmans, Green, 1875), 73.

“Great Logic Branch,” 1875, woodcut by Alfred James Swinbourne [1]

Syllogisms are two premise arguments. Most arguments, other than those that are relational, statistical, and multi-term, can be reduced into syllogistic form.

Today, syllogistic logic has assimilated into sentential and predicate logic; however, syllogistic reasoning is still often used in legal and everyday reasoning.

Several different techniques of evaluating syllogistic arguments are discussed whereby the reasoning can be conclusively evaluated to be either valid or invalid.

1. Alfred James Swinbourne, “Image: Woodcut: The Great Logic Branch,” Picture Logic; or, The Grave Made Gay,” (London: Longmans, Green: 1875), 73.


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