1.   No evidence emerged to prove either theory.

2.   Results can never prove a theory.

3.   Suddenly, he had turned to look at her -- simultaneously surprising her and proving her theory.

4.   Her theory had been proved, yet it still seemed like a fairy story.

5.   And Spencer offered Jackson a phone book to read, to prove his theory that the actor could make even the Yellow Pages interesting.

6.   Archeologists say that it will probably be impossible to prove any theory for where the pyramid idea came from, but nobody can predict what new fieldwork might uncover.

7.   Back in California, MacCready and his colleagues at Aero Vironment set out to prove that theory with the Gossamer Condor.

8.   Blandford said the satellite observations did not yet prove his theory, but he called them encouraging.

9.   A few days later, Miller proved his theory about big fish following the same route by returning with a friend to the same underwater humps.

10.   But Boeing says the crash is still a mystery and there is not enough evidence to prove either theory.