Logical terms. Truth can only take two values: true or false. Truth corresponds to correct judgment, and falsehood corresponds to wrong judgment. The truth value of any proposition is unique. The proposition that truth is true is true. The proposition that truth is false is a false proposition.

1, the true proposition is the correct proposition, that is, if the topic of the proposition is established, then the conclusion must be established. For example:

① Two parallel lines are cut by a third straight line, and the internal dislocation angles are equal.

2 If a>b, b>c and then a>c.

③ The vertex angles are equal.

2, false proposition is wrong proposition such as:

The sum of the three internal angles of a triangle is not equal to 180 degrees.