21. All of those experiments confirmed Lorentz invariance and special relativity. 22. However, strict measurement invariance rarely holds in applied context. 23. :The evidence here is the evidence that Lorentz invariance is valid. 24. A theory that displays local gauge invariance is called a gauge theory. 25. By gauge invariance , all points along these lines are physically equivalent. 26. This violates Galilean invariance , a long-standing cornerstone of classical mechanics. 27. Such geodesics are the generalization of the invariance of lightspeed in special relativity. 28. The invariance of light speed is one of the postulates of special relativity. 29. In classical music, Bach used the symmetry concepts of permutation and invariance . 30. These desirable properties may be described as : validity, optimality and invariance .
