| At that time we had a lot of questions as to the validity of that information. |
| However, the question of the validity of soft dollars was not a debatable matter until recently. |
| While scientists may well query the value of this kind of concept, I am sure that many social scientists will query its entire validity. |
| Yet this must surely raise questions over the validity of the prize itself. |
| There are also some questions over the validity of the Lancet study in the case of measuring casualties in Iraq. |
| Moreover, the inability to assert theorems containing free variables makes it impossible to prove any de re modal validities. |
