I have no been answered once on the message board so please help me with this one question. P: x->B, P: y->not C, not x->c
I know we have to be negate but where do I go from there?
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You are correct that the first step is to find all the contrapositives.
X --> B Not B --> Not X
Y --> Not C C --> Not Y
Not X --> C Not C --> X
The second step is to connect the premises using transitive chains to draw our conclusion. Remember that we can create a transitive chain if the necessary condition of one diagram matches the sufficient condition of another.
Y --> Not C --> X --> B
From this, we can conclude Y --> B.
We can also do the contrapositive and conclude Not B --> Not Y.
Not B --> Not X --> C --> Not Y
Hope this helps! Please let us know if you have any further questions.
