First of all, a brief introduction.
1. Proposition is a basic concept in logic and argumentative writing, and it is a sentence that expresses the main meaning. Propositions can be divided into true propositions and false propositions. The fact represented by the true proposition is true, and the fact represented by the false proposition is false.
2. When learning logic or argumentation, we often come into contact with propositions. Proposition is the basis of constructing logical reasoning. Through the analysis and reasoning of the proposition, draw a conclusion and support your own point of view.
Second, how to judge
1 First of all, a proposition is usually a conclusion or descriptive word. So we can first see whether a sentence contains a conclusion or a description. If a sentence expresses a conclusion or description, then the sentence may be a proposition; Secondly, we can try to rewrite a sentence into the form of a question. If the answer to a question is "yes" or "no", then this sentence is a proposition.
2. Logical symbols can also be used to judge whether a sentence is a proposition. Logical symbols are used to express propositions and support our views. Proposition plays an important role in logic and argumentation, and is the basis of constructing logical reasoning.
3. To judge whether a sentence is a proposition, you can try to rewrite it in the form of a question. If the answer to the question is "yes" or "no", then this sentence is a proposition. Proposition is the basis of logic and argument, and it is an important tool to construct logical reasoning.
Third, the proposition
1. In modern philosophy, mathematics, logic and linguistics, proposition (judgment) refers to the semantics of a judgment sentence (the concept of actual expression), which can be defined and observed. Proposition refers not to the judgment sentence itself, but to the semantics expressed. When different sentences have the same semantics, they express the same proposition.
2. In mathematics, the declarative sentence of judging something is generally called a proposition. After Aristotle, logicians, such as those of Theofrastos, Macquarie School and Stoic School, as well as logicians in the Middle Ages, constantly discussed compound propositions including propositional conjunctions "or", "and", "if, then" and so on.