The Qualitative Thesis says that if you leave open P, then you are sure of if P, then Q just in case you are sure of the corresponding material conditional. We argue the Qualitative Thesis provides compelling reasons to accept a thesis that we call Conditional Locality, which says, roughly, the interpretation of an indicative conditional depends, in part, on the conditional’s local embedding environment. In the first part of the paper, we present an argument—due to Ben Holguín—showing that, without Conditional Locality, the Qualitative Thesis is in tension with a margin for error principle on rational sureness. We show Conditional Locality reconciles the Qualitative Thesis with the margin for error principle. In the second part, we argue the full range of data supports what we call the Strong Qualitative Thesis. Without Conditional Locality, the Strong Qualitative Thesis has unacceptable consequences. But with Conditional Locality, it is tenable.

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定性论文

定性命题说，如果你让开放的 P 保持开放，那么你肯定如果 P，那么你肯定是 Q，以防万一你确定相应的物质条件。我们认为定性命题为接受我们称为条件局部性的命题提供了令人信服的理由，该命题粗略地说，指示性条件的解释部分取决于条件的局部嵌入环境。在论文的第一部分，我们提出了一个论点——由于 Ben Holguín——表明，在没有条件局部性的情况下，定性论题与理性确定性的容错原则处于紧张关系。我们展示了条件局部性将定性论文与误差幅度原则相协调。在第二部分，我们认为所有数据都支持我们所谓的强定性论点。没有条件局部性，强定性命题具有不可接受的后果。但是对于条件局部性，它是站得住脚的。