How do you know that the child having type O blood is sufficient and the father having type B blood is necessary?
I’m very confused.
Can an instructor please explain?
Thanks I’m advance
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So the argument is Parent: If parent type O -> children type O Student: this is false, because father has B and I have O.
The student is assuming that the child having type O blood is sufficient to know that the father has type O blood, but that this conditional is wrong because their father has type B blood, and this is why the student disagrees.
Note that in reality, the child having type O blood is actually the necessary condition (based on the conditional given to us by the parent). However, the student is treating the child having type O blood as the sufficient. If the student interpreted the conditional correctly, then there would be nothing wrong with them having O and their father having B, and they wouldn't have an argument at all. I hope this helps, feel free to follow up with further questions.
