Which one of the following could be a complete and accurate list of the messages left on the answering machine, from ...
davidamayaAugust 1, 2019
Confusion with Setup
Hello! For the contrapositive chain, we began with rule #6: "No H or No L -> No P" etc. For rule 5's contra chain, we didn't do "No P or No T -> No F"; we excluded P and stated "No T -> No F -> No G." I'm wondering why this is because it is important to me to understand why P would not be included in the list of entities (H, L, and T) necessary for the diagram.
Please help! @Mehran
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Is it because when H and L are present P is present (Rule 6 contra chain) and therefore is unnecessary in Rule 5's contra chain and only T needs to be accounted for?
