反证法的英文：
reduction to absurdity

reduction是什么意思：
n. 减少；缩小；降低；简化；还原（作用）

This is a reduction procedure.
这是个简化方案。

A drive for cost reduction is announced.
宣布开展降低成本的竞赛。

The major reason for the reduction of family size is a reduction in the number of births.
家庭规模缩小的主要原因是生育子女数量的减少。

Oxidation cannot occur without reduction.
没有还原反应就没有氧化反应。

A reduction or depreciation of the entered value of an item.
已收入款项的帐面价值的减低

absurdity是什么意思：
n. 荒谬；谬论

What you said was totally of absurdness.
你所说的真是荒谬之极。

To her, the question is absurd.
对于她来说，这个问题太荒谬了。

Fantastic, unbelievable, absurd
荒诞不经

An absurd speech that insulted the intelligence of the audience.
侮辱听众智力的荒唐演说

It was an absurd arrangement, and bound to lead to catastrophe.
这是一种荒唐的安排，注定会导致灾难。