A conditional is a sentence in the form ‘if a then c’. Logicians call a the antecedent of the conditional, and c the consequent. ‘Conditionals: what’s in an if’ looks at the importance of the conditional, which is fundamental to much of our reasoning. Yet, it is deeply puzzling. Conditionals have been studied in logic ever since its earliest times. It is important to note that in the kind of situation where you learn that a premiss is true by being informed of it, other factors are usually operating. We often make such inferences without thinking about them.