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Session 4: Reasoning with argument maps

Completion requirements

We use a concise notation for representing the map as text. This notation will be used in the figure descriptions throughout. Using the notation, this argument map can be described with two lines. Those lines will be introduced one at a time. The first line specifies the main claim.

MC ‘Eating carrots improves eyesight.’

It consists of the abbreviation MC (for main claim), followed by the text of the main claim in quotation marks. The second line introduces the claims that supports the main claim:

SUPPORT 1 ‘Carrots are a source of Vitamin A.’ 2 ‘Taking vitamin A can reduce the risk of poor vision in individuals with a vitamin deficiency.’

The keyword SUPPORT indicates that the claims 1 and 2 are related to the main claim via the support relation. The numbers, 1 and 2 are used as identifiers for the supporting claims. The actual words of the claims follow in quotation marks.

In summary, the argument map in this figure can be represented as follows using the notation introduced:

MC ‘Eating carrots improves eyesight.’

SUPPORT 1 ‘Carrots are a source of Vitamin A.’ 2 ‘Taking vitamin A can reduce the risk of poor vision in individuals with a vitamin deficiency.’