So big difference between actuality and possibility.
实际性和可能性有很大不同。
It's the possibility of combination of true premises and false conclusion that is ruled out not just the actuality of the combination.
真前提和假结论结合的可能性，被排除了，不只是结合的实际性。
Okay so the only thing that's ruled out in arguments being valid is the possibility, not the actuality, of the combination of the premises being true and the conclusion false.
好，唯一能排除论点有效性的是，是可能性，不是实际性，而是真前提，和假结论的结合。
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