Re: Newton's 3rd law? was Re: inertial forces (definition)

[Bob Sciamanda <trebor@VELOCITY.NET>]

----- Original Message -----
From: JACK L. URETSKY (C)1998; HEP DIVISION, ARGONNE NATIONAL LAB ARGONNE,
IL 60439 <JLU@HEP.ANL.GOV>
To: <PHYS-L@lists.nau.edu>
Sent: Tuesday, October 26, 1999 1:50 PM
Subject: Re: Newton's 3rd law? was Re: inertial forces (definition)


> Hi Bob-
>         The difference is that the first <may> indicate a numerical
> equality but need not, because it is a definition
> . . . Jack

If it defines a numerical quantity, then it specifies a numerical value to
be assigned to the defined symbol; ie., it indicates a numerical equality.

"Pi is the ratio of a circle's circumference to its diameter" is a
numerical equality (and a definition).

I heartily enforce your distinction among definitions, theorems, etc. as
useful and in need of stressing,  but not your restriction of the concept
of "numerical equality" (to exclude mathematical definitions).

Peace!  (I quit!)

Bob