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Questions tagged [rigid-designator]

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Is my name a rigid designator if I had an identical twin in a possible world?

In examples I have read defining the term "rigid designator," proper names are used as an example, e.g. Aristotle vs the author of the Nicomachean Ethics. I could well be overanalyzing what ...
jwimberley's user avatar
3 votes
1 answer
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Measurement units and metaphysical necessity

I understand Kripke as arguing (in Naming and Necessity) that "a meter" is a rigid designator - it designates the same length in all possible worlds (on the other hand "the standard stick is a meter ...
Y.Z.'s user avatar
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1 answer
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Could Napoleon have been born to different parents?

According to Kripke, things get their identities by being "baptized" with a rigid designator, and we refer to them by way of a causual chain. So it is not the case that Napoleon had to become Emperor ...
Canyon's user avatar
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5 votes
3 answers
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Are there possible worlds that differ only in the assignment of rigid designators?

Is there an implicit idea in Kripe's definition of rigid designators that rules out the following possible world: Let A, B rigidly designate two things in the real world. Imagine the possible ...
Dave's user avatar
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1 answer
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Does everything have at least one rigid designator?

Put antother way Proposition 1: for anything that exists in this world I can find/construct, even if just by assertion, a rigid designator that applies to it. Proposition 2: like proposition 1 but ...
Dave's user avatar
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1 vote
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How can I tell when a term is a rigid designator?

Basically the title question: How can I tell if a term is a rigid designator? So far all I have is that proper names are (or can be, since there is a difference between "being named Barack Obama" ...
Dave's user avatar
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5 votes
0 answers
338 views

Rigid designators, equality and functions in many-valued logic and (simple) quantified modal logic [closed]

After reading "In Defense of the Simplest Quantified Modal Logic", I wonder how to add functions to the language of the simplest quantified modal logic (QML for short). The simplest model of QML has a ...
Thomas Klimpel's user avatar
12 votes
2 answers
583 views

Is "Mickey Mouse" a rigid designator?

According to Kripke, proper names, like Barack Obama, Michael Jackson etc are rigid designators. In all possible worlds, the name refers to the 'object' Barack Obama or Michael Jackson. This is true ...
Applied mathematician's user avatar
7 votes
1 answer
417 views

Is this sentence contingent or necessary true? A priori or a posteriori?

Given the following sentence "Barack Obama's name is Barack Obama According to Kripke, can we say that this sentence is necessary true or is it contingent? I'm confused because proper names are ...
Applied mathematician's user avatar