Pseudo-proposition: If the proposition of a proposition holds, but there is no guarantee that the conclusion will hold, then such a proposition is called a pseudo-proposition. True proposition: A true proposition is a correct proposition, that is, if the topic of the proposition is established, then the conclusion must be established.

Definition of proposition: Generally speaking, in mathematics, statements that can be expressed by language, symbols or formulas and can be judged to be true or false are called propositions. Among them, statements judged to be true are called true propositions, and statements judged to be false are called false propositions.