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60439 wrote:
Hi all-
On non-unique theories. Question is, what do you mean by
"mathematically equivalent". Take electrodynamics in two different
gauges.
Are the two formulations "mathematically equivalent"? We know that
they
ar e physically equivalent because they make identical predictions
about
physics.
Another case in point, is Hamiltonian mechanics
"mathematically
equivalent" to Newtonian mechanics? What is your criterion?
Regards,
Jack