validities in a sentence

Examples

1. These studies repudiate the validity of the committee's results.
2. Legal experts, however, questioned the validity of the union.
3. Current canonical law requires the Trinitarian formula and water for validity.
4. Primary among these was the port rights checking and message validity.
5. Later the validity of Formosus'work was re-reinstated.
6. Other medical researchers questioned the validity of Huxley's account.
7. There are questions about the external validity of the AS diagnosis.
8. The validity of this treaty is still contested by some Rapanui.
9. He successfully convinced aviation authorities of the concept's validity.
10. Whether that act had any legal validity is open to speculation.