User:GBég

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fr-N Cet utilisateur a pour langue maternelle le français.
en-2 This user has intermediate knowledge of English.
la-0 Hic usor nullo pacto aut aegre Latinitate contribuere potest.
it-1 Questo utente può contribuire con un livello elementare in italiano.
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Russel : https://en.wikisource.org/wiki/Index:Russell,_Whitehead_-_Principia_Mathematica,_vol._I,_1910.djvu