A deductive argument is one in which the arguer attempts to demonstrate that the truth of the conclusion necessarily follows from the premises. When a deductive argument is properly constructed, the premises logically entail the conclusion Two of the most common types of deductive arguments are categorical arguments and truth-functional arguments. A categorical argument is a deductive argument that contains categorical claims. Truth-functional claims combine simple claims using logical operators. identifying truth-functional arguments requires that you look for disjunctions and conditional claims. They are usually claims containing the words or and if . . . then . . ., or their equivalents Categorical claims are claims that relate two categories