|Exercise 5.2 Model Answer|
This argument map was used as an example of a rejoinder in Tutorial 4:
The rejoinder is an inference objection.
The rejoinder does not object to the main premise of the reason, which is a claim about the size LRV. It says that the main contention does not follow from that premise.
To map the rejoinder, we need to articulate all the co-premises of the reason. The second co-premise was given by the author in the text [8.4]; the third is obviously needed to connect the first two with the contention.
The objection presents evidence against the third premise. You can stow something 3.1 x 2.3 x 1.14 in a space 4.3 x 3.2 while leaving room for other equipment if that object is folded up first. Which is not such a strange idea. I have a tent which is much larger than my car, but can easily stow it in the car by folding it up first.
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