What form is the form of a proposition usually written?

There are four usual forms of propositions, which are:

Original proposition, inverse proposition, negative proposition, inverse negative proposition.

For example, if x>1, then f(x)=(x-1) 2 increases monotonically.

Inverse proposition: A new proposition that inverts the conditions and conclusions of the original proposition, e.g., if f(x)=(x-1) 2 increases monotonically, then x>1.

Negative proposition: A new proposition that negates the conditions and conclusions of the original proposition in its entirety, but does not change the order of the conditions and conclusions, e.g., if x<=1, then f(x)=(x-1) 2 does not increase monotonically.

Inverse negative proposition: A new proposition that reverses the conditions and conclusions of the original proposition, and then negates the conditions and conclusions in their entirety, e.g., if f(x)=(x-1) 2 does not increase monotonically, then x<=1.

In modern philosophy, mathematics, logic, and linguistics, propositions refer to the semantics of a judgment (statement) (the concept of actual expression), which is a phenomenon that can be defined and observed. A proposition does not refer to the judgment (statement) itself, but to the semantics expressed. When different judgments (statements) have the same semantics, they express the same proposition.

In mathematics, declarative sentences that judge a certain thing are generally called propositions.

If ......Then ......The form of " can also be written as if. Then ......Why?

If it is followed by a condition, then it is followed by a conclusion.

The four forms of propositions are the original proposition, the negative proposition, the inverse proposition, and the sumNegative proposition

1. Original proposition: The proposition itself is called the original proposition, for example: if x>1, then f(x)=(x-1) 2 increases monotonically.

2. Inverse proposition: A new proposition that reverses the conditions and conclusions of the original proposition, such as: if f(x)=(x-1) 2 increases monotonically, then x>1.

3. Negative proposition: A new proposition that negates the conditions and conclusions of the original proposition, but does not change the order of the conditional friend code and conclusion, for example: if x<=1, then f(x)=(x-1) 2 does not increase monotonically.

4. Inverse negative proposition: a new proposition that reverses the conditions and conclusions of the original proposition, and then negates the conditions and conclusions in full, such as: if f(x)=(x-1) 2 does not increase monotonically, then x<=1.

For two propositions, if the conditions and conclusions of one proposition are the conclusions and conditions of the other proposition, respectively, then the two propositions are called inverse propositions, one of which is called the original proposition, and the other proposition is called the inverse proposition of the original proposition.

For two propositions, if the conditions and conclusions of one proposition are the negation of the conditions of the other proposition and the negation of the conclusion, respectively, then the two propositions are called mutually negative propositions, one of which is called the original proposition, and the other proposition is called the negative proposition of the original proposition.

The four forms of propositions are the original propositionInverse proposition, no proposition andNegative proposition

1. Original proposition and inverse proposition: If the premise and conclusion of one proposition are the conclusion and premise of another proposition, respectively, then such two propositions are called original propositions and inverse propositions respectively.

2. Negative proposition: For two propositions, if the conditions and conclusions of one proposition are the negation of the conditions and the negation of the conclusion of the other proposition, respectively, then the two propositions are negative propositions of each other.

3. Inverse negative proposition: If the conditions and conclusion of one proposition in two propositions are the negation of the conclusion and condition of the other proposition, respectively, then the two propositions are called inverse negative propositions of each other.

Mutual relations: 1. The interrelationship of four propositions: the original proposition and the inverse proposition are inverse, the inverse proposition and the inverse proposition are mutually negative, the inverse proposition and the negative proposition are inverse, the negative proposition and the original proposition are mutually negative, the original proposition and the inverse proposition are inverse to each other, and the inverse proposition and the negative proposition are inverse to each other.

2. The true and false relationship of the four propositions:

1) Two propositions are inverse negative propositions of each other, and they have the same true or false nature.

2) Two propositions are mutually inverse or mutually negative, and their truth or falsity has no relationship.

1. For two propositions, if the conditions and conclusions of one proposition are the conclusions and conditions of the other proposition, respectively, then the two propositions are called reciprocal propositions.

One of the propositions is called the original proposition, and the other proposition is called the inverse of the original proposition.

2. For two propositions, if the conditions and conclusions of one proposition are the negation of the conditions of the other proposition and the negation of the conclusion respectively, then the two disturbing propositions are called mutual negation propositions, one of which is called the original proposition, and the other proposition is called the negative proposition of the original proposition.

3. For two propositions, if the conditions and conclusions of one proposition are the negation of the conclusion of the other proposition and the negation of the conditions, respectively, then the two propositions are called mutually inverse negative propositions.

One of the propositions is called the original proposition, and the other proposition is called the inverse negative proposition of the original proposition.

There are two forms of propositional writing: story-based or non-story-based.

On the surface, the story writing test is very simple: all candidates write their own stories under the same proposition, and there are no other special requirements. Generally speaking, the questions for the exam are very simple, in order to give the candidate as much room as possible to play.

Although the scope of the questions is wide, it is actually classified by classification, such as objects: "An Umbrella", "Candle"; or with characters as the theme: "My Classmates and Me", "Mother"; Or it is based on the proposition of the space environment:

A corner of the hotel", "On the bus", etc., if you look carefully at these topics, we will find that although the topics give some limitations, there is still a lot of space, the topics are clear and specific, and each student can actually mobilize their own life experience to create.

More often than not, the questions in the exam are a collection of several seemingly unrelated elements, such as "Scythe, Hoe and Saffron", "A Teacup, an Afternoon and a Secret", etc., which leave more room for the candidates to create than a single-element proposition. No matter what type of questions you encounter, the most important thing as a test taker is to think about the questions carefully, and not to write your story too casually in a literal sense. In the proposition writing exam, the most important thing is to go straight to the point, mediocre and straightforward.

For example, for a topic like "Candles", most candidates will write about how hard teachers work, comparing them to candles that burn themselves to illuminate others, which naturally does not reflect your unique expression of self-experience for such a topic; Another example is the title of "Mother", there will be many unbelievable stories, and everyone will find out that they are not born to their mother. There are many possibilities for topics like "A Teacup, an Afternoon and a Secret", but many students invariably regard the teacup as a token as a secret witness of the loss between separated relatives, and the result is that the test paper is full of lost relatives, and there are cups entrusted to others before death, and I don't know how many cups have been broken. Many students thought that their story team had won the topic, but they didn't realize that other students had chosen the same idea as themselves.

Concepts and propositions are two forms of rational knowledge.

Rational knowledge is a reflection of the essential characteristics and intrinsic associations of things, and includes both conceptual and propositional forms. It represents the relationship between concepts, and reflects the essential connection and internal laws between different things. The so-called rational knowledge is a reflection of the essential characteristics and internal relations of things, including concepts and propositions.

Concepts reflect the essential properties of things and the essential connections between them; Propositions are what we usually call rules, principles, and principles. It represents the relationship between concepts, reflecting the essential connection and internal laws between different things.

Rationality refers to the ability of people in a normal state of mind to calmly face the current situation with confidence and courage in order to obtain the expected results, and quickly and comprehensively understand the reality, analyze a variety of feasible solutions, and then judge the best plan and effectively implement it. Rationality is based on existing theories, and the results are determined by rational logical deduction. Otherwise, it is anti-rational.

The essence of reason is negation and doubt.

Reason originated from the Greek word "logos" (Greek: logos). In Roman times, it was translated into Latin Guess:

Ratio, which originally meant to count money in Latin, became a widely used term in philosophy after being equated with Logos. When translated into French, it becomes French: raison.

Basic meaning

Rationality generally refers to people's ability to form concepts, make judgments, analyze, synthesize, compare, reason, calculate, etc. Its meaning is the opposite of sensibility, which refers to the attitude of dealing with problems in accordance with the law of development of things and the principle of natural evolution, considering problems and dealing with things without impulsiveness, and not doing things according to feelings.

From a sociological point of view, rationality refers to the intelligence that can identify, judge, and evaluate practical reasons and make human behavior fit for a specific purpose. Reason discovers truth through arguments and persuasive arguments, and derives conclusions, opinions, and reasons for action through logical reasoning rather than appearances.