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File:Hamilton Lectures on Logic 1874 Euler Diagrams.png

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English: Euler diagrams and description from Hamilton's Lecture on Logic XIV, ascribing their invention to Christian Weise in 1712.
Date
Source Adapted from Lectures of Metaphysics and Logic, Vol. 4: Lectures on Logic Vol. 1, 3rd ed. Ed. by Mansel & Veitch. Edinburgh, Blackwood, 1874, pp. 255-256. Original publication 1860. https://books.google.com/books?id=61EyAQAAMAAJ
Author William Hamilton

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This work is in the public domain in the United States because it was published (or registered with the U.S. Copyright Office) before January 1, 1929.

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Note: This tag should not be used for sound recordings.PD-1923Public domain in the United States//commons.wikimedia.org/wiki/File:Hamilton_Lectures_on_Logic_1874_Euler_Diagrams.png

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