A truth table specifies the truth values of a compound proposition for all possible truth values of its constituent propositions. It is a convenient method for analyzing compound statements. A truth table shows the truth values of statements involving logical connectives such as negation, conjunction, and disjunction. De Morgan's laws state that the negation of a conjunction is the disjunction of the negations, and the negation of a disjunction is the conjunction of the negations. Truth tables can be used to show that expressions following from De Morgan's laws are logically equivalent.