- Posts: 2
- Joined: Feb 04, 2018
- Sun Feb 04, 2018 5:45 pm
#43521
Hello!
I am having trouble with the logic of this very simple question. I can answer it no problem with intuition, but when I write out the logic, the answer is unclear.
It has 2 premises
P1: Efficient and attractive subway systems make good economic sense.
P2: The city always does what makes good economic sense.
Conclusion: The city needs to buy new subway cars.
Obviously, the gap is between buying new subway cars and efficient and attractive subway systems.
I first diagrammed the logic like this: EAS-->GES C--->GES thus PNSC-->EAS--GEC. So I was looking for if you purchase new cars then you get efficient/attractive subways. This is a mistaken reversal. But how do you get purchasing new cars in the necessary condition?
Thank you, anyone!
I am having trouble with the logic of this very simple question. I can answer it no problem with intuition, but when I write out the logic, the answer is unclear.
It has 2 premises
P1: Efficient and attractive subway systems make good economic sense.
P2: The city always does what makes good economic sense.
Conclusion: The city needs to buy new subway cars.
Obviously, the gap is between buying new subway cars and efficient and attractive subway systems.
I first diagrammed the logic like this: EAS-->GES C--->GES thus PNSC-->EAS--GEC. So I was looking for if you purchase new cars then you get efficient/attractive subways. This is a mistaken reversal. But how do you get purchasing new cars in the necessary condition?
Thank you, anyone!
