Antonym of "confirm" that refers to facts and not opinion [duplicate]

Solution 1:

I prefer to use the word refute in such a circumstance.

1. to prove wrong by argument or evidence : show to be false or erroneous
2. to deny the truth or accuracy of

Solution 2:

Disconfirm:

The empirical data obtained in a test—or, as we shall prefer to say, the observation sentences describing those data—may then either confirm or disconfirm the given hypothesis, or they may be neutral with respect to it.

Disprove:

By careful observation, I have disproved that the earth orbits the sun.

Solution 3:

You might want something like disprove, invalidate, or deny, no?