The conclusion C must be true. A premise is something that is known to be true. A premise is one of the starting-points of a logical inference. A premise is one of the ending-points of a logical inference. A premise is a logical step that takes the reasoner from one premise to another.
Some statements are both true and false.
Some statements are neither true nor false. Every statement is either true or false, but not both. Every statement on the right side is represented as being false. Every statement on the right side is represented as being true. Every statement on the right side is represented as being inconsistent.