FOM: Rigidity

Robert Black Robert.Black at
Thu Feb 21 16:45:26 EST 2002

>  I've long felt that a mathematical theory whose models (at
>least their "standard" models, when this distinction is applicable) DON'T
>admit automorphisms seems to have a better intuitive claim to be theories
>describing domains of "genuine" mathematical objects.


Does this mean that because of conjugation the complex numbers aren't 
'genuine' mathematical objects? The example's so obvious that I'm 
sure you've thought of it already and your answer will be 'no', but 
then just what do you mean by 'genuine'?

Robert Black
Dept of Philosophy
University of Nottingham
Nottingham NG7 2RD

tel. 0115-951 5845

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