1. Such a contention is, of course, unprovable, since all the evidence is circumstantial and associative.

2. It was both unproved and unprovable.

3. This thesis is unprovable, of course.

4. Scientific laws are testable in spite of being unprovable.

5. Are scientific claims in some sense as unprovable as religious ones?

6. It was unprovable of course, but in provable instances the readings had shown themselves to be honest if not infallible.

7. Access to files sometimes leads people to worry that they will be sued if the record contains unprovable statements.

8. "The website is blocked because the information is both unprovable and sensitive," Shi said.

9. Characterized by an authoritative, arrogant assertion of unproved or unprovable principles.

10. If Popper is right, scientific theories are not only equally unprovable but also equally improbable.

11. All is theory, virtual reality, consciousness, and for the most part unprovable - subject to the interpretation of the researcher or experiencer.

12. The Bible is so much an article of faith, so laden with unprovable events and legends, he contended in 1926, that "we can now know almost nothing concerning the life and personality of Jesus."

13. You shouldn't worry about NDAs because they're mostly unenforceable or unprovable anyways.

14. A leap of faith, in its most commonly used meaning, is the act of believing in or accepting something intangible or unprovable, or without empirical evidence.

15. Given any finite set of axioms, we have an infinite number of truths that are unprovable in that system.