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# Diagramming Arguments - PowerPoint PPT Presentation

Diagramming Arguments. Congruent and Linked Arguments. An Argument. An argument = a set of statements connected by a special relationship of justification; the statements provide evidence for the main claim. Independent Premises.

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## PowerPoint Slideshow about 'Diagramming Arguments' - Gabriel

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### Diagramming Arguments

• An argument = a set of statements connected by a special relationship of justification; the statements provide evidence for the main claim

• Falsity of one doesn’t cancel support the other provides.- independent proof.

• You shouldn’t buy a T.V. that costs over \$300. This costs \$450. It is also too big for your room. Don’t buy this T.V.

• Falsity of one can cancel support for others-interconnected.

• These premises cannot stand alone to provide proof.

• No floor with 2x4 joists on two foot centers is strong enough. This floor has 2x4 joists on two foot centers. So, this floor is not strong enough.

• In convergent arguments, the premises provide different and independent reasons for the claim. Each can support the claim by itself.

• Nuclear power plants should not be built, because they are dangerous. And, the power from these plants is not essential. Finally, these plants are not fair to future generations.

• Linked argument- one in which the reasons are dependent on one another for their strength. They cannot stand alone.

• There is reason to think the suspect is linked to this crime. The shots were fired from a jaguar; jaguars are not usual to this area; and the suspect owns a white jaguar.

• Identify each claim and number them.

• Provide missing parts if needed.

• Determine relation of claims and diagram.

• Arguments seek to prove a point; to establish truth of a claim on basis of other claims.

• Persuasion seeks to win others to a point of view- may or may not have proof.

• “The desperate attempt by Hawks to link Iraq to the war on terrorism is based on blatant mis-information.

• Is there evidence?

• There can be implied or missing parts of an argument. Often it is assumed that you will supply the missing information or think it automatically.

• Jones will not win the election since his District is Democratic.

• You should prefer this tea as do professional tea-tasters.

• This film is too intellectual and thus probably will not be economically successful.

• Being a barber, you are no doubt a good conversationalist.

• Alice could not have been the robber, since Alice was not in Key West when the crime was committed/ At 10 a.m., August 9, she as in Miami.

• The Anacin difference-two standard aspirin tablets can 650 milligrams while two Anacin tablets contain 800 milligrams.- better?