On the other hand, isn't imagination our best guide to logical possibility?

另一方面,想象是通向逻辑可能性的最好的向导吗

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Put the same point the other way around: If I can imagine A without B, then A and B have to be logically distinct things.

把这点推而广之,如果我可以想象A在没有B的情况下存在,那么A和B在逻辑上是相互独立的

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Maybe A could be the same thing as B in this logically possible world, but we could imagine a completely different logically coherent world in which A was not the same thing as B.

也许在这某个逻辑世界里,A会和B是同一个东西,但我们可以想象,一个完全不同的另一个逻辑世界里,A和B不是同一个东西

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