1.   Before he picks up his quest to reclaim all forms of the heavyweight championship, he has tackled an equally difficult proposition.

2.   But those days, Arum and matchmaker Bruce Trampler recognize, are behind him now, and that made the match a difficult proposition.

3.   Celebrity is both an easier and a more difficult proposition in a world that recognizes Joey Buttafuoco as easily as President Clinton.

4.   Control is always a difficult proposition to sort out, made more complicated recently as commercial partners have escalated their financial involvement.

5.   Even bearing witness is a difficult proposition.

6.   Even if the technology exists for a detailed ratings code, the human power would be a more difficult proposition.

7.   For a college football player in a high-profile program, that is a difficult proposition in the best of times.

8.   For regulators, the mergers may pose a difficult proposition.

9.   It would also be a difficult proposition for British Airways.

10.   Keeping shots on line was a very difficult proposition.