People who eat right have a higher metaboloism. People who eat right are in better physical shape. People who eat right weigh less. Therefore, people should eat right. In this strategy, you combine a piece of factual information with a universally-held premiss to make a specific claim.
Logos also deals with avoiding fallacies in reasoning.
Sometimes untrue statements are cast in forms that appear logically sound. We will discuss these later in the semester. The non-artistic proofs are those that come from outside the writer. Although held in lower esteem in classical days, in the modern world the non-artistic proofs often comprise the bulk of our research papers. In the model for the writing process, we talked about observation and memory as two things that help you note the details of your experiences and of your readings, and those details are the things that will help you write effective essays.