On 2/21/2020 1:16 PM, Philip Thrift wrote:
On Friday, February 21, 2020 at 2:33:12 PM UTC-6, Lawrence Crowell wrote:
On Thursday, February 20, 2020 at 1:56:02 PM UTC-6, Philip Thrift
wrote:
On Thursday, February 20, 2020 at 8:58:15 AM UTC-6, Lawrence
Crowell wrote:
It is not so simple. Language as with any symbolic system
is incomplete. So any symbolic structure will by Gödel's
theorem be incapable of proving it's consistency.
Wittgenstein seemed to recognize this and backed away from
his Tractus.
Even with basic physics we have F = ma, which has a force,
a dynamical quantity, equal to mass, kinematical, times
acceleration that is geometrical. This is a categorical
confusion! Yet we appeal to this as a fundamental
principle. That has a few aspects of metaphysics.But
But of course "F = ma" is simply a string of characters which
is interpreted by our program(s) of physics. Force, mass,
space, time are all*fictional entities* ("characters" in
another sense!) that are fitted into its framework.
@phiilipthrift
But, the different parts, F, m and a have different units of
measure, which is what is of relevance.
LC
Didm't Vic say all measurements can be reduced to rulers and clocks?
Then something to do with
https://en.wikipedia.org/wiki/Buckingham_%CF%80_theorem
Vic said just clocks. The constancy of the speed of light allows time
measurements to be used to measure distances...and in fact that's how
high precision distance measurements are made.
Brent
@philipthrift
@philipthrift
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