text: It depends how you define your number system.\nFor example, the decimal number system in everyday use states 1 + 1 = 2\nBut if you define 1 differently, such as in base 2 maths (binary maths) then the previous answerer was correct in stating 1 + 1 = 10\n\nAlternatively if you define 1 as a symbol, not a number, then 1 could represent anything.\nE.G, you could define a whole new number system which goes 3,2,1,6,5,4... etc\nwhere 3 is the first number, 2 is the second number... etc\nThis would be very confusing!! But the point i'm trying to make is that the concept of "one", "two" or "three" is not dependent on the symbols we use for them, 1, 2 ,3.