1 1 2 this way, 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1

So far, no one should have proved 1+1=2, only 1+2=3.

1+1=2 proof process: Because the successor of 1+1 is the successor of 1, i.e. 3. So the successor of 2 is 3.

According to Piano's axioms: if b and c are both successors of the natural number a, then b = c; , yields: 1+1=2.

A Dedekin-Piano structure is a triplet (x, x, f) of this bright sample, where x is a set, x is an element in x, and f is a mapping of x to itself, and the following conditions are met:

x is not in the range of f;

f is a single shot;

If x a and"a a implies f(a) a", then a=x.

0 is a natural number. A natural number is followed by a natural number. 0 is not the successor of any natural number. Different natural numbers, the successor of the Fengyu is also different.

axiomatic mode) given the proposition p(x) about the natural number x, if p(0) is true, and p(k) holds it can always be derived that p(s(k)) is true, then p(x) is true for any natural number x. Some natural numbers have a definition of 1 as a successor to 0: 1=s(0).

By the Axiom of Piano, silver bond segments 1 and 2, 1 are natural numbers. 2 is the successor of 1: 2=s(1)=s(s(0)).

Defined by Piano's axiom 2 and the natural number 1, 2 is the natural number.

The definition of the addition of natural numbers is that for any natural number x, there is x+0=0 (20190908: clerical error, should be x+0=x). For any natural numbers x and y, there is x+s(y)=s(x+y).

Verification: 1+1=2 Proof: 1+1=1+s(0) (Definition of natural numbers 1) = s(1+0) (Definition of addition 2) = s(1) (Definition of addition 1) = 2 (definition of natural numbers 2).

Summary. 1+1=2 is mathematically 1+1=2, and only by writing it this way will you get a score. But there are different answers in different contexts. For example, one hour plus one hour equals 120 minutes.

Is 1+1=2?

1+1=2 is mathematically 1+1=2, and only by writing it this way will you get a score. However, in different environments, there are different answers to the difference in the downstream. For example, one hour plus one hour equals 120 minutes.

So it depends on what the specific unit is, as well as the specific environment. However, in the math test, when 1+1 appears, you must write that it is equal to 2.

No, it's just that Einstein said that 1+1 is equal to, and in terms of physical dimensions, 1+1 is indeed equal to three, and 1+1 is a point in the world of one, a point that cannot be moved, and 1+1 is in two dimensions.

According to Einstein's theory of relativity, I think 1+1=3 is also correct hemp. Because according to the theory of relativity: 1 drop of water plus 1 drop of water can also become 3 drops of hemp, of course, it can also be Zheng Sou to be 1 drop, 2 drops, 4 drops, 9 drops, 76 drops, 8 drops, or even more.

If the water evaporates, it is zero, and if you look at it from the perspective of water molecules, it is innumerable.

The first time I heard this formula, I didn't understand it, and it didn't make sense to explain it from a mathematical point of view. Probably being alone for too long, not having a sense of teamwork, when there is someone with whom you complete the task.

This efficiency is often much faster than when a sail shouter is fighting alone, which reflects the role of 1+1>2. But I think it needs to be added that when this person is inefficient in doing things, and in the process of cooperation, he cannot achieve effective communication and has his own opinions, that is, the result of 1-1=0 is worse than expected.

1+1=2 is the equation for numerical calculations within the range of elementary mathematics.

It is known that there are three different categories of things in the world. One is the amount that fully satisfies additivity. For example, the total mass of the gas in the container is always equal to the sum of the masses of each gas molecule. For these quantities, 1+1=2 is perfectly true.

The second category is the amount that only partially satisfies the additivity. For example, if the gases of two containers are combined, the temperature of the combined gas is the weighted average of the respective temperatures of the original gases (this is a generalized "addition"). But here's the catch

The amount of temperature does not fully satisfy additiveness because a single molecule has no temperature.

Elementary school

Integers, fractions, and the four operations of elementary school, numbers and algebra, space and graphs, simple statistics and possibilities, unary equations, circles, positive and negative numbers, preliminary solid geometry.

Junior high school

Algebra Section: Rational Numbers (Positive and Negative Numbers and Their Operations), Real Numbers (Radical Operations), Plane Cartesian Coordinate Systems, Fundamental Functions (Quadratic Functions, Inverse Proportional Functions), Simple Statistics, Acute Trigonometry, Equations, (Unary Linear Equations, Binary Linear Equations, Unary Quadratic Equations, Ternary Linear Equations), Factorization, Integers, Fractions, Unary Inequalities.

Geometric Sections: Congruent Triangles, Quadrilaterals (emphasis on parallelograms and special parallelograms), Symmetry and Rotation, Similar Figures (emphasis on similar triangles), Basic properties of circles.

High school

Sets, Elementary Elementary Functions (Exponential, Logarithmic, Power, Higher), Quadratic Root Distributions and Inequalities, Cauchy Inequality, Permutation Inequality, Wheel Plexus Elementary Determinants, Trigonometric Functions, Analytic Geometry and Conic Curves (Ellipses, Parabolas, Hyperbolas), Complex Numbers, Number Sequences, Advanced Statistics and Probability, Permutations and Combinations, Plane Vectors, Spatial Vectors, Spatial Cartesian Coordinate Systems, Derivatives, and Relatively Simple Definite Integrals.