So on question 12 JY mentioned a bi conditional because there was a /S-->H, /H-->S, and also a S-->/H, and a H-->/S. However, to get the first set of conditionals, the original chain was /S-->J-->H. Can you simply say that this= /S-->H ...
I understand the whole formal logic chain, pretty simple, however I do not understand why the last sentence is added to the end of the chain (a necessary condition) when the sentence starts out as 'The only', which implies sufficiency. Not sure for legal ...
... would take out the energy-conserving equipment once they ... install the energy meters. If the energy-conserving equipment stayed ... If some people conserved energy for non-financial reasons ... before landlords installed the energy meters, then this would ...