"Rhetorical Deduction uses a commonplace to reach a conclusion (P. 133)."

As I read Chapter 13 of Thank You for Arguing I began realizing of all the ways we are fooled in our day to day life. Everyone around us uses bad logic, everybody from our parents -  saying "Then if your friends jumped off a bridge, would you do it too?" - to politicians - "Every American family has to live within their means. Their government should, too (P.122)." And then I realized an example of deductive logic that I, as a girl, see all the time: beauty.

This example is actually made up of two parts. Society begins pushing this rhetorical deduction into girls' heads as off a very young age:
"Women want to be pretty.
You are a woman,
Then you want to be pretty."
Due to this, young girls become concerned with being pretty, because, well, they're "women," so they must be pretty as well... or at least try to be.

This example of deductive logic sets the commonplace for a next situation. It leaves girls vulnerable and makes them easy targets to companies with the objective of making them "pretty."So these companies use the following example of rhetorical deduction:
"If our product makes you pretty,
and you want to be pretty,
then you should buy our product."

This advert is a perfect example:

Although, to be honest, it is one of the most boring advertisements I've ever seen, it does the trick and employs deductive logic. Notice how not a word is said, yet, the message is clear: This product will make you "chic, trendy, glamourous, [and] beautiful." It wants women to say "If this product makes me pretty, and I want to be pretty, then I should buy this product." - well, in a much more thoughtless way like "I want this product."  Interesting how society works hand in hand with the beauty industry. 

Vocabulary

Deduction:  "Deductive logic applies a general principle to a particular matter. Rhetorical deduction uses a commonplace to reach a conclusion, interpreting the circumstances through a lens of beliefs and values (P.133)."

Enthymeme:  "We should [choice], because [commonplace] (P. 133)." 

Induction:  "In rhetoric, induction is argument by example. This kind of logic starts with the specific and moves to the general (P. 133)."

Fact, Comparison, Story:  "These are the three kinds of example to use in inductive logic (P. 133)."

Paradigm: A set of linguistic items that form mutually exclusive choices in particular syntactic roles.