21.   The doctor died before his theory could be proven.

22.   The lack of documentation to prove the theories of the cash surplus prompted Gonzalez to seek a probe and report.

23.   The next year, the one-game theory was proved in unusual fashion.

24.   Theodore Levitt may or may not pay for anything with a Mastercard, but he can certainly use the company to prove his theories of global marketing.

25.   They suspect that faulty wiring, combined with other problems, could have sparked the blast but have not been able to find evidence to prove the theory.

26.   This one proves the theory that the one premiering first is worst.

27.   Time after time he has proven his theories on the course he has played since the first week it opened.

28.   To prove their theory, researchers grafted sections of human ovaries into mice and then exposed them to the hydrocarbons.

29.   Who better to prove this theory than Luc Robitaille?

30.   Admiration now comes even from some who say his theories are not proven.