1, 2, 3, 10, Wang, A, You, Shen, Tian, Feng,
In the mathematical calculation of 10,1+1= 2; It is also the foundation of the "Mathematics Building".
In binary mathematical calculation,1+1=10;
Why is 1+ 1 equal to 2?
This is defined by mathematicians, because the definition of 2 is the addition of two 1
That is, axiom, without proof.
It can also be proved by reduction to absurdity.
Is 1+ 1 equal to 3?
Many people associate it with the person who proves 1+ 1=2.
Chen Jingrun Goldbach conjecture is not equal to 1+ 1=2.
But "the sum of two prime numbers must be a sum number", abbreviated as 1+ 1=2.
That is to say, 1+ 1=2 is not this 1+ 1=2.