Quelltext der Seite Boole, G. (1854): An Investigation of The Laws of Thought

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|key=Boole (1854)
|authors=George Boole
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|title=An Investigation of The Laws of Thought on Which are Founded the Mathematical Theories of Logic and Probabilities
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|publisher=Macmillan
|address=London
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|year=1854
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|url=https://archive.org/details/investigationofl00boolrich, https://www.gutenberg.org/ebooks/15114, https://archive.org/details/aninvestigationo15114gut
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|language=Englisch
|quality=5
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==Ausschnittskopie==
[[Datei:Boole 1854 Universe of Discourse p42.png]]
[[Kategorie:Quelle:Logik]]
[[Kategorie:Quelle:Philisophie]]