Reasoning, in its most fundamental sense, is the process by which we take bits of information and knowledge that we already have, and compare or combine them to generate new knowledge. It describes our ability to move from what we know to what we don’t know.
We do this by drawing conclusions from a set of premises – things we already know (or believe) to be true. The way we combine the premises to produce a conclusion is called an argument. The goal is to construct a sound argument so that we draw conclusions in such a way that they are guaranteed – or at least very likely – to be true. We want to come to the right conclusions, but this can be tricky.