Microstructure
A Toulmin Analysis of Arguments
by Lee McGaan,
Department of Communication Studies, Monmouth College (IL)
adapted from Stephen Toulmin. The Uses of Argument, Cambridge:
Cambridge Univ. Press, 1958
The
Three Primary Elements of an Argument
- Claim (assertion, proposition)
- A statement affirming or denying something
- the answer to the question "What are you trying to prove?" "What's your point?" - Can be denied (in this context)
- Grounds (Support, evidence)
- material which will convince audience/opponent
- not likely to be disputed (in this context) OR can be further supported.
- usually more concrete, often narrower (or a general truth).
- an answer to the question, "How so?" "Why do you think so?" "Prove it!"
- It is appropriate for the claim because it is relevant and strong.
- Warrant: what links support/gr. to cl. Why the gr. is allowed to stand as proof for
the claim
- A principle of logic or reasoning
- a recipe or license
- often a formal rule
- generally unstated, an assumption that both rhetor and audience implicitly accept
- the key is that a warrant can apply to many claims and grounds
. It's not specific to just this situation.
EXAMPLE:
Claim:
Joe Smith is a good choice for the position of Appellate Court Judge
Grounds:
The American Bar Association recommended Smith as well qualified.
Warrant:
(usually unspoken) The ABA is an authority source known as competent to
determine who is a good choice for appellate judge positions.
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