[Marxism] -ismic doctrine or science?

[Les Schaffer]

Haines Brown wrote:
> I was hoping someone would have picked up on "operational
> symbol". What do you think Kolmogorov meant by the phrase?
>
> I suspect that "operational symbol" here implies that the differential
> represents an operator in that it is a function of a material process
> rather than merely an abstract formalism that exists in its own right.
>
>   


well, kinda sorta....

think about the topographic map of a mountain. the lines represent 
constant height above sea level.

the differential operator takes the contour lines ( really the *class* 
of all contour lines) and transforms them into a *class* of directions 
that everywhere point uphill.

off to class to teach this very topic (potential surfaces around 
electric charges: the gradient "operator" gives the electric field from 
the potential contours).

Les