That's called a proof by contradiction, and according to the legend, the gods did not appreciate being contradicted.

这被称为矛盾证明法，而根据传说，上帝并不喜欢矛盾的存在。

This is a technique known as proof by contradiction.

这是一种称为反证法的技术。

You now know, by what’s called a proof by contradiction, that two of the boxes have 8 or more rubies.

您现在知道， 通过所谓的反证法，其中两个盒子有 8 颗或更多红宝石。