Jisho

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ぎゃく 逆
Common word JLPT N3 Wanikani level 28 Play audio Show 1 collocation Links
Noun which may take the genitive case particle 'no', Na-adjective (keiyodoshi), Noun
1. reverse; opposite​
Na-adjective (keiyodoshi), Noun
2. converse (of a hypothesis, etc.)​
Noun, used as a prefix
3. inverse (function)​Mathematics
Wikipedia definition
4. Converse (logic)​In logic, the converse of a categorical or implicational statement is the result of reversing its two parts. For the implication P → Q, the converse is Q → P. For the categorical proposition All S is P, the converse is All P is S. In neither case does the converse necessarily follow from the original statement. The categorical converse of a statement is contrasted with the contrapositive and the obverse.
Read “Converse (logic)” on English Wikipedia
Read “逆” on Japanese Wikipedia
Read “Converse (logic)” on DBpedia

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