1. A fact or statement that has been demonstrated, verified, or established through evidence, testing, or logical reasoning
Scientific research has established that the Earth revolves around the Sun as a proven truth.
A pesquisa científica estabeleceu que a Terra gira em torno do Sol como uma verdade comprovada.
2. An established fact that is accepted without further dispute or doubt
It is a proven truth that water boils at 100 degrees Celsius at sea level.
É uma verdade comprovada que a água ferve a 100 graus Celsius ao nível do mar.