prove to

prove (something) to (one)

To show or provide evidence that substantiates or makes one believe a claim. This case is your chance to prove your worth to the firm. I want to prove my theory to the panel.
See also: prove

prove something to someone

to substantiate a claim about something to someone; to make someone believe or accept a statement about something. What do I have to do to prove my innocence to you? Nothing you say will prove it to me.
See also: prove
References in classic literature ?
If, for instance, some day they calculate and prove to me that I made a long nose at someone because I could not help making a long nose at him and that I had to do it in that particular way, what freedom is left me, especially if I am a learned man and have taken my degree somewhere?
It is just his fantastic dreams, his vulgar folly that he will desire to retain, simply in order to prove to himself--as though that were so necessary--that men still are men and not the keys of a piano, which the laws of nature threaten to control so completely that soon one will be able to desire nothing but by the calendar.
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He assured Emily that he had only decided on writing to her, after some hesitation, in the hope of serving interests which he did not himself understand, but which might prove to be interests worthy of consideration, nevertheless.
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