Induction
Induction is the branch of logic that deals with logical uncertainty. As with the certainty of deduction, the uncertainty here is uncertainty of inference. We are looking at ways of being rational when we could, nonetheless, still reach erroneous conclusions. Induction seeks to answer the question, if I accept these claims, what other claims become probable. Another way of thinking about this is to see induction as the logic of the educated guess; it looks at ways to be systematic about using incomplete evidence.