Chapter 6

Compound Claims and "Or" claims:
The compound claims are usually composed with more than one claim, however it views as just one claim. In this kind of claim, the two claims are usually combine with the word "or."
For example, The dogs are sick or they are just hungry. This claim does not mean that the dogs are sick nor they are hungry. It just stated that the dogs are either sick or hungry, not either one nor both. As the result, there is just one claim in that statement not two. In compound claim, the "or" part call the alternative.

Reasoning with "or" claims:
To determine if the argument is valid or not, one have to look at the role the compound claims play.
For example, The dogs are sick or they are just hungry. But the owner just fed the dogs their dinner. Therefore, the dogs must be sick. This can be called as excluding possibilities: A or B. If not A. So, B.