"If, without in any way disturbing a system,
we can predict with certainty the value of
a physical quantity, there exists an element
of reality corresponding to this physical
quantity", wrote once EPR.

(Of course the strong term here is *predict*,
because prediction is based on something,
a theory, a logic, a model, ... which 
may be wrong!)

Is there a similar definition, in math?

s.




Reply via email to