to demonstrate
to show clearly that something is true or exists by providing proof or evidence

示す, デモンストレーションする

[動詞]
to uphold
to support or defend something that is believed to be right so it continues to last

支持する, 擁護する

[動詞]
to vindicate
to prove someone or something right by providing evidence or justification

弁護する, 正当化する

[動詞]
to validate
to confirm or prove the accuracy, authencity, or effectiveness of something

検証する, 確認する

[動詞]
to ascertain
to determine something with certainty by careful examination or investigation

確認する, 特定する

[動詞]
to invalidate
to prove that something is incorrect or flawed, making it not acceptable or reliable

無効にする, 反証する

[動詞]

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