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the converse of [noun]
在逻辑与数学中，converse 指把条件句前后倒置后得到的命题。
The converse of the theorem has not been proven.
该定理的逆命题尚未得到证明。
相反；反面
先理解核心含义，再看它在真实句子里的用法。
相反；反面
The opposite or reverse of something.
The converse of the theorem has not been proven.
该定理的逆命题尚未得到证明。
相反或反面的事物。
The opposite or reverse.
对于一个由“如果A为真,则B为真”形式陈述构成的命题或定理,其逆命题“如果B为真,则A为真”不一定与原命题等价。
Of a proposition or theorem consisting of a statement of the form "If A is true, then B is true", the statement "If B is true, then A is true" which need not be equivalent to the first one.
一对从相反视角命名或描述关系的术语之一；逆反义词；关系反义词。
One of a pair of terms that name or describe a relationship from opposite perspectives; converse antonym; relational antonym.
是“转置”的同义词。
Synonym of transpose.
The converse of 'if it rains, then the ground gets wet' is 'if the ground gets wet, then it rains.'
“如果下雨，地面就会湿”的逆命题是“如果地面湿了，那么就会下雨”。
In geometry class, we proved that the converse of the Pythagorean theorem is also true for right triangles.
在几何课上，我们证明了勾股定理的逆定理对于直角三角形也成立。
A valid argument does not require its converse to be valid as well.
一个有效的论证并不要求其逆命题也有效。
在逻辑与数学中，converse 指把条件句前后倒置后得到的命题。
The converse of the theorem has not been proven.
该定理的逆命题尚未得到证明。
这个结构表示“情况正好相反”，常用于对比两种观点。
People often think loneliness comes from being alone; for her, the converse is true.
人们常以为孤独源于独处；对她来说，恰恰相反。
动词后接 the converse 表示“提出相反观点”，正式语境中常见。
She argued the converse: that a higher tax could boost revenue.
她提出了相反的论点：更高的税收反而能增加收入。
Not this
Converse, we should not trust him.
Use this
Conversely, we should not trust him.
converse 是名词，表示“相反的事物”，不能放在句首作状语；conversely 才是副词，意为“反过来/相反地”。
Not this
The converse with this theorem is also true.
Use this
The converse of this theorem is also true.
converse 表示“逆命题/反面”时，用介词 of 引出所属对象，如 the converse of a statement；不能用 with，这是介词搭配错误。
Not this
We had a long converse about the weather.
Use this
We had a long conversation about the weather.
表示“交谈”应用 conversation；名词 converse 在本词条中只指“相反/反面”（以及逻辑上的逆命题），没有“谈话”的意思。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
反之亦然；反过来也成立
She believed the plan would fail, but the converse is true.
她认为这个计划会失败，但事实恰恰相反。
恰恰相反；完全相反的事物
Her opinion is the exact converse of mine.
她的观点与我的恰恰相反。
一个定理的逆命题
The converse of a theorem is not always true.
一个定理的逆命题并不总是成立。
证明逆命题
The mathematician tried to prove the converse but failed.
这位数学家试图证明逆命题，但失败了。
互为反向词；互为逆关系
In semantics, 'buy' and 'sell' are converses.
在语义学中，buy 和 sell 互为反向词。
Use converse naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
把 converse 联想成 conversation 的反面：对话有来有回，converse 就是“回过来的那一边”——相反、逆命题。
语域：formal 常见场景：逻辑推理、数学证明、学术写作 名词形式表示“相反；逆命题”时，通常用于正式或学术语境，多出现在逻辑、数学或书面讨论中，口语里较少单独使用。
逻辑或数学中通过转化得到的命题
Dictionary facts from ECDICT, OCTANOVE, WIKTIONARY.