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Another theory of reference that was named about the time 'rigid designator' was coined, and that is widely associated with rigid designation, is the causal theory of reference.
Thus this isolate's race designator was given as ZC15.
After Swissair's bankruptcy in 2002, the flight designator was changed again to Flight LX 023, now operated by an Airbus A330-300.
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Rigid designation requires that the object designated by a rigid designator be the same in all worlds.
A so-called rigid designator is an expression that singles out the same thing in all possible worlds.
According to the view that the correct semantics implies an essentialist metaphysics, the semantic claim that 'water' is a rigid designator is itself metaphysically loaded.
Reference is not secured by way of causal grounding; you never point to anything in a baptismal ceremony.[4] Yet the designator is rigid.
By default, any gene name that does not have a locus designator is presumed to be the first such gene identified and will be assigned the locus designator, "1", e.g., PURPLE NODE will be designated PURPLE NODE 1.
(The term 'rigid designator' is due to Kripke (1972).) (Note that this particular example assumes the highly controversial view that circumstances of evaluation include, not just possible worlds, but also times. For a discussion of different views about the nature of circumstances of evaluation and their motivations, see §2.3.2 below).
Dug in along the planet's last Maginot Line, this conscript band of diminished soldiers (rumors abound about malnourishment causing height/weight standards to drop below 5ft and 100lbs) is at best equipped with overhauled T-62 main battle tanks (the designator is indeed the initial production date, 1962) and artillery capable of annoying, but certainly not destroying, the neighbors.
Rigid versus non-rigid designators are specific terms for the study of reference.
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Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com