Can somebody explain the difference between C and D for me?
Started by
Tegan
· started 2020-07-20 19:27
· last activity 2020-07-21 01:03
· 1 reply
When I diagram them I continually get the same flaw as the argument. Because of this I couldn't choose between the two of them and I ended up selecting D.
-
shunhe
· 2020-07-21 01:03
Hi @Tegan,
Thanks for the question! So let’s take a look at the argument diagram real quick first:
Balcony —> Fireplace
Balcony —> ~One bedroom
Conclusion: One bedroom —> ~Fireplace
Or, to generalize
A —> B
A —> ~C
Conclusion: C —> ~B
Now take a look at (C):
Cat —> Fur
Cat —> ~Dog
Conclusion: Dog —> ~Fur
and we see this matches the structure
A —> B
A —> ~C
Conclusion: C —> ~B
Now take a look at (D):
Cat —> ~Dog
Dog —> ~Fish
Conclusion: Cat —> Fish
This is actually
A —> ~B
B—> ~C
Conclusion: A —> C
And so we can see that these are actually quite different structures.
Hope this helps! Feel free to ask any other questions that you might have.
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