反证

反證

fǎnzhèng

noun #32,344

Meanings

1 counter-evidence
2 disproof
3 proof by contradiction (math)

Characters

opposite / counter

proof / evidence

Examples

他拿不出任何反证。

Tā ná bù chū rènhé fǎnzhèng.

He can't produce any counter-evidence.

数学课老师讲了反证法。

Shùxué kè lǎoshī jiǎng le fǎnzhèngfǎ.

The math teacher taught proof by contradiction.

Tips

usage

反证 has two distinct uses: in court/debate it means 'counter-evidence' that disproves a claim. In math/logic, 反证法 ('reductio ad absurdum') is the proof technique of assuming the opposite and deriving a contradiction.

Stroke Order

反 fǎn

证 zhèng