This does not require proof.

If you pass two points, you can draw a straight line; The local area is smaller than the whole area; Wait a minute.

Laws: Laws in science are summarized from experiments and do not need to be proved.

Can't prove it. Law is an algorithm in mathematics, such as commutative law, commutative law and so on.

Theorem: Derived from axioms, laws and assumptions.

This needs to be proved. In science, if someone puts forward or summarizes more basic laws.

Or suppose that the original law degenerates into a theorem.

Formula: Any expression can be called formula in English, which is the "formula" in Chinese.

In chemistry, all chemical expressions can be called molecular formulas, such as CO? .

Few people talk about formulas in physics textbooks, or people in China talk about formulas.

Physics generally likes to talk about what laws and theorems are based on.

Of course, there is nothing wrong with the formula, there is nothing wrong with it.

Only more Dali theorists like to talk about laws, theorems and laws); ;

The more beginners and juniors, the more they like to talk about formulas.

Equation: it is a conditional expression, x+2 = 3, and only x= 1

The general expression of the solution of quadratic equation, which we call "the root formula", is in English.

It's called the quadratic formula.

Identity: Is it an unconditional expression, sin? x+cos？ X= 1。 What is the angle with x?

It doesn't matter. It is also a unit operand that does not change the results of operations such as addition.

0 in multiplication, 1, identity matrix in matrix operation.

Property: In business, property is property. In science and mathematics, it represents

It is a "property", such as oxidation and reduction in chemistry; Physical conductivity,

Thermal conductivity and so on; In mathematics, similarity, congruence,,, and internal angle are equal and the same.

Complementarity of internal angles,,, are attributes. Despite the laws of exchange, association and distribution

The law is used, but it is still property.

Rule: a method used only for judgment or calculation, such as the right-handed spiral rule in electromagnetism-

Right-handed grip, Robida's law in calculus-Robida's law

The above is for reference only. If the landlord needs more content and more skills, please hi me.