When the economy is in a recession, overall demand for goods and services is low. If overall demand for goods and ser...
Brett-LindsayJuly 5, 2020
Answer choice A: "if and only if" construction?
I'm just wondering if answer A has an implied "if and/but only if" construciton.
"If the restaurant is full, the parking lot will be full, and if the parking lot is full, the restaurant is full"
Diagrammed separately, it's
RF --> PLF
(not PLF --> not RF)
PLF --> RF
(not RF --> not PLF)
It seems like we could diagram it as follows:
RF <-----> PLF
So far, I haven't seen "if and only if" in any questions, and it wasn't mentioned in the videos or in any of the threads.
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Hi @Brett-Lindsay, good instinct! Your diagram is correct and we could phrase this as the restaurant is full if and only if the parking lot is full. Hope this helps!
