There are countless kinds of objective phenomena, and there are countless kinds of objective entities, but they are different or the same. Every phenomenon exists in each other, and every entity will not show it. If "1" is marked, people cannot directly see "1". What people can see is the existence of the phenomenon itself, that is, the existence of the entity itself, not A. Or its "figure" is not like the shape of "1". Even if some states in nature are really like "1", human beings will not abstract "1" for no reason.
There is only one possibility, that is, "1" is not directly abstracted from natural objective phenomena and objective entities, but comes from "thinking", but from a very regular phenomenon in nature. Observing, thinking and summarizing abstract "1", and then abstracting 2, 3, ...
In other words, this extremely regular phenomenon must exist objectively, and it is extremely regular in nature, rather than the universal natural environment of the earth like a mountain, a tree or a piece of land. And if I'm not mistaken, this extremely regular phenomenon is probably the book of Hetuluo, that is, natural evolution and the next harmonious phenomenon. He Tu Luo Shu is the beginning of many numbers and the teacher of many teachers (in the final analysis, "nature" is the father of many fathers, the teacher of many teachers and the beginning of many, but "nature" is unknown)
And "1" must be a static abstraction, a whole abstraction, not a dynamic abstraction.
"2" must also be a static abstraction, an overall abstraction, not a dynamic abstraction.
.......
"9" must also be a static abstraction, an overall abstraction, not a dynamic abstraction.
(What is silence? Silence means "... what is" harmony "... what is not";
What is moving? Moving means "how, how, why, what ...")
Of course, the 1 2 3 4 5 6 7 8 9 we are talking about now is an Arabic numeral, and we have no way of knowing how the corresponding 1 2 3 4 5 6 7 8 9 was expressed or written at first.
1 2 3 4 5 6 7 8 9 is static abstraction and overall abstraction, while "-"and "+"are dynamic abstractions. "1- 1" and "1+ 1" indicate that the original state has changed due to different changes. "+"and "-"are dynamic abstractions, which are dynamic abstractions of the quantitative relationship between the objective existence phenomenon and the existence state of objective entities.
"*" and "/"are also dynamic abstractions. "*" is the dynamic abstraction of "+"operation, which means the operation of "adding several identical numbers to get corresponding results" or the operation of amplifying a result or a number by a relative multiple (number). ..
"/"refers to an operation in which a result or a number consists of several identical numbers; Or an operation in which a result or a number contains several identical numbers; Or a result or a number can be divided into several equal operations on average; Or to represent a result or a number with equal components, and to reduce the amount of division. ....
"*" and "/"are dynamic abstractions, which are abstract symbols such as logarithm or similar numbers, and the change of quantitative relationship.
The power operation of n is a dynamic abstraction of the operation of */,representing n operations with the same result or n operations with the same phase * or/. At the beginning, when the power operation was born, its n must be a natural number, and then it developed in an abstract sense. "n" appears in the form of natural numbers, negative numbers, fractions, logarithms ... and so on. Everything that exists can appear, but human beings have limited ability to accept and understand abstraction and limited wisdom. The fundamental reason is that human memory ability is limited and thinking is abstract.
For example, a person who can only accept plane memory, that is, two-dimensional memory, can't accept three-dimensional or even high-dimensional memory (unless the road is simple, everything becomes "understandable two-dimensional" to understand and digest ... one expression at a time), and it is even more impossible to understand, analyze, judge and think about three-dimensional or even high-dimensional memory content.
Just like a dog, if you give it a bone and a piece of meat, its response is very sensitive and quick, and it will be taken away immediately or eaten directly; However, if you give an equally rich and even nutritious food with layers of packaging, no primary colors and no original flavor, its response may be "0".
..........
In short, "number" is just an abstract concept, abstract naming, it does not exist in the objective world, only in our subjective world, only in our subjective memory.
In the objective world, there are only different states, and there is no "definite entity or phenomenon".
What exactly is "number" is unknown.