File:Russell PM 1+1=2.png
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![File:Russell PM 1+1=2.png](https://upload.wikimedia.org/wikipedia/commons/thumb/8/8c/Russell_PM_1%2B1%3D2.png/800px-Russell_PM_1%2B1%3D2.png)
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 16:10, 22 February 2011 | ![]() | 2,948 × 929 (40 KB) | commons>Wvbailey | {{Information |Description ={{en|1=image of the point in the text where Russell deduces that 1+1=2.}} |Source =First edition of Principia Mathematica Volume II, 1912 p. 86 |Author =wvbailey created this from a www.google.books pdf cc of |
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