11.   By late Monday, Tishman had concluded that he had seen enough to prove his theory.

12.   Cooke and his team were experimenting with mice to prove that theory when they found the drug had exactly the opposite effect.

13.   Dierker proved his theory Sunday, when his maneuvering put Dreifort completely out of whack in the top of the eighth.

14.   How many findings must Currie and Coria demonstrate to prove their theory?

15.   In the laboratory of my own back yard I have proven this theory beyond doubt.

16.   It has to be admitted also that I cannot prove this theory of literary ambivalence.

17.   No one has been able to prove the theory conclusively.

18.   No less an expert in flotsam than ESPN proved the theory with its Extreme Games.

19.   The discovery includes several early specimens that may be useful in trying to prove his theory that the dinosaur was more scavenger than hunter.