It's a matter of taking what you want to prove out of context.
The exact direction that this line takes will prove out in question.
If these prove out, you may have saved the satellite by the rapidity of your work.
This is what my correspondent pretends to prove out of his own books, and those of his whole neighbourhood.
If he asked, it must be to receive all and return nothing, except whatever of constancy time might prove out of his heart.
I just love to experiment, to work, and to prove out things, so that ranch life and "roughing it" just suit me.
Even if the third-stage motor never fired, the rocket was high enough to prove out the project objective.