Definition of "nonvanishing" [nonvanishing]

• (of a quantity) that is nonzero at all points in a space (adjective)

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• "If you continue to assume maximal symmetry for the spacetime, then this would seem to imply that only Minkowski space is allowed, not AdS or dS, since they have nonvanishing Ricci scalar."
• "Might this then contribute to a a nonvanishing cubic term in the group elements t?"
• "The contents of any two regions of space-time separated by a nonvanishing spatiotemporal interval constitute separable physical systems, in the sense that (1) each possesses its own, distinct physical state, and (2) the joint state of the two systems is wholly determined by these separate states."