When we evaluate these sentences with respect to other worlds, we do not seem to admit that the designatum changes, as it would if names were non-rigid descriptions taking the proper scope in modal contexts.
The rigid body description was derived from the Ζ matrix used in the simulated annealing runs and the final refinement included a total of 44 parameters (25 profile, 2 cell, 1 scale, 1 isotropic temperature factor, 9 position, and 6 rotation), yielding a final Rwp = 5.57.
(30) The rigid body description was derived from the z-matrix used in the simulated annealing runs and the final refinement included a total of 61 parameters (40 profile, 4 cell, 1 scale, 1 Uiso, 9 preferred orientation, 3 position, and 3 rotation) yielding a final Rwp = 5.53.
Rigid job descriptions, layers of unnecessary middle management and lack of authority often prevent workers from being efficient and effective.
Two ways to rigidify a non-rigid definite description have been explored.
A popular descriptivist response to the modal argument is then to semantically equate names with rigid definite descriptions.
In that case, of course, broad causal grounding is ubiquitous and not specially tied to rigidity: all singular concrete object designators, including non-rigid definite descriptions, are broadly causally grounded.
Before moving on, note that certain non-rigid definite descriptions, such as 'the man in the corner', pattern with names rather than with the "role-type" definite descriptions in examples like (8) (the terminology, and its exegesis, can be found in Rothschild 2007).
