What is 1 10 1? Tell me why.

1. 1+ 1=2.

Second, why 1+ 1=2?

1+ 1=2 This belongs to axioms and axiomatic systems. The child broke his finger and began to learn to count-

1+ 1=2,2+ 1=3,3+ 1=4,4+ 1=5,6+ 1=7,7+ 1=8,8+ 1=9,9+ 1= 10。

When you use up your fingers, it happens to be 10, which is the source of decimal.

Piano postulate and the additive definition of natural numbers;

Carl hempel introduced piano's axiomatic system as the basis of mathematics in his thesis "On the Essence of Mathematical Truth".

Now let's look at a postulate system from which we can deduce all the arithmetic of natural numbers. This system was designed by Italian mathematician and logician piano (1858- 1932) ... The term "number" refers to the natural number 0, 1, 2,3 ... The successor of the natural number n is sometimes called N'.

P 1 0 is a number.

Page 6. The successor of any number is a number.

Page 14. No two numbers have the same successor.

P⒋ 0 is not the successor of any number.

If p is a property, let (a)0 have the property p, (b) when a number n has the property p,

The successor of n also has the property p, so every number has the property p.

1+ 1=2 instead of 1+ 1=3.

1+ 1=2, 2 is the only successor of 1. If 1+ 1=3, 3 is the successor of 1, then the successors of 1 are 3 and 2, which are inconsistent.

Third, in addition, 1+ 1 is quoted as "1+ 1", which is the only reference. It is a code name, referring to the Goldbach conjecture of even numbers-every even number not less than 6 is the sum of two prime numbers. For example, 6 = 3+3 is another example.

This proposition was put forward by Goldbach when he wrote to Euler in 1742.

However, many people regard "1+ 1" as the code name of Goldbach's conjecture, which is confused with "1+ 1=2" in common sense, resulting in misunderstanding and needing to be corrected.

Therefore, 1+ 1 is equal to 2 in our daily calculation of 10.

But in the field of mathematics, 1+ 1 cannot be simply said to be equal to several.