noun
logical inconsistency; logical contradiction
Refers to a situation where two statements, ideas, or principles cannot both be true at the same time within a logical framework. Common in academic, philosophical, and technical contexts.
彼の主張には論理矛盾がある。
There is a logical contradiction in his argument.
この理論は論理矛盾を含んでいるため、受け入れられない。
This theory contains a logical inconsistency, so it cannot be accepted.
矛盾 is a broader term for any contradiction or inconsistency, not necessarily limited to formal logic. 論理矛盾 specifically emphasizes a contradiction within a logical system or reasoning.
Compound of 論理 (logic) and 矛盾 (contradiction). The term 矛盾 itself originates from an ancient Chinese parable about a man who claimed to sell an unbreakable shield and an unstoppable spear, creating an impossible situation.