File:Frege-gegensätze.png

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	Date/Time	Thumbnail	Dimensions	User	Comment
current	12:36, 8 June 2009		2,405 × 1,871 (573 KB)	Chalst	{{Information \|Description={{en\|1=Diagram from p24 of book. Describes "square of opposition" for his system. Taken from purely mechanical scan performed via gallica.bnf.fr; some defects of the scan repaired by hand by myself.}} \|Source=Frege, Gottlob, 1

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