One of the three rhetorical appeals is logos: Will the audience perceive the rhetor's argument as logical?

The following list explains (briefly!) some of the common rhetorical strategies for using logos:

• Syllogism: A claim using deductive logic involving a major premise, a minor premise, and conclusion. This is a move from the general to the specific.
• Support a generalization with examples: A claim using inductive logic, where a general statement about something is backed up by specific examples.
• Cause or consequence: A claim about one thing causing another, or one thing being caused by another.
• Analogy: A claim about the qualities of one thing using a comparison to another thing.
• Testimony and authority: A claim that involves citing the opinion of someone other than the rhetor, someone respected by the audience.
• Definition: A claim about the meaning or nature of something.

For a more detailed explanation (including examples) refer to the "Three Rhetorical Appeals" course web page.