And thus we come to numbers: I define
'v'x = v+1'x Def.
According, then, to these symbolic rules we write the series
Therefore I write in place of "[x, ,
And I define:
6.021 A number is the exponent of an operation.
6.022 The concept of number is nothing else than that which is common to all numbers, the general form of a number.
The concept of number is the variable number.
And the concept of numerical equality is the general form of all particular cases of numerical equality.