John H. Conway
29 septembre 2017 de 16 h 00 à 18 h 00 (heure de Montréal/HNE) Sur place
The “first field” is obtained by making the entries in its addition and multiplication tables be the smallest possibilities. It is really an interesting field that contains the integers, but with new addition and multiplication tables. For example, 2 x 2 = 3, 5 x 7 = 13, ... It extends to the infinite ordinals and the first infinite ordinal is the cube root of 2!
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