The only way that bookstores can profitably sell books at below-market prices is to get the books at a discount from ...

YHD August 1, 2018

Need Help

I thought that what follows after 'Unless' and 'only' is Necessary condition? "The only way that bookstores can profitably sell books at below-market prices is to get the books at a discount from publishers" Then shouldn't this sentence then diagrammed as GDP --> BPSBMP Please explain

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MichelleRod August 1, 2018

Thanks for your question @YHD

You are correct that "unless" and "only" precede necessary conditions

If you recall from the same lesson, however, "THE only" proceeds a sufficient condition