na-adjective, noun which may take the genitive case particle 'no', noun
self-evident; obvious; axiomatic; trivial
Means that something is clear without needing further proof or explanation. More written and logical-sounding than everyday words like 当たり前; in mathematical or technical contexts it can correspond to 'trivial' or 'immediate from the definitions.'
その説明が不十分であることは自明だ。
It is obvious that the explanation is insufficient.
これは自明の理として扱われている。
This is treated as a self-evident truth.
定義から、この命題は自明である。
From the definition, this proposition is trivial.
It's self-evident that his argument is correct.
That is a self-evident fact.
The theory takes the rationality of markets as a self-evident premise.