The perturbations of the planetary motions are a confirmation, not a disproof, of gravity.
Yet he wrought these theories one after another to their own disproof.
His own reasoning, in disproof of this theory, was entirely characteristic of the man.
No documentary proof can be given of its veracity; and there is no disproof.
That he is frequently shot is no disproof of this assertion.
The Friar lifted up his foot in disproof, but the shoe was there.
Given a verifiable hypothesis, however, what constitutes proof or disproof?
To suppose the reference to be to an epistle carried by Titus and now lost, is to suppose what is incapable of proof or disproof.
One is the argument from concomitant variations, which is available both for proof and for disproof.
The scientific method is adequate to deal with all questions capable of proof or disproof.