* Double Dualization: Functions on vs. Figures in
@ 2014-10-27 4:37 Venkata Rayudu Posina
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From: Venkata Rayudu Posina @ 2014-10-27 4:37 UTC (permalink / raw)
To: posina; +Cc: categories
Dear All,
The constructs of GENERALIZED POINT (Sets for Mathematics, p. 150) and
CONCRETE GENERAL (in the context of Functorial Semantics) are similar:
(i) both are encountered in the course of getting to know a given
object / graph / category; (ii) both begin with measurements
(functions on [the given object] as opposed to figures in; Conceptual
Mathematics, pp. 82-83); and (iii) both involve a two-step process
i.e. double dualization. In light of these similarities, what exactly
is the relation between generalized points
A --> V
(where A is a set of maps B --> V) and concrete generals
A --> V
(where A is a category of functors B --> V)? In other words, I'd
appreciate any pointers to literature that explicitly brings
functorial semantics to bear on physics (e.g. center of mass; Sets for
Mathematics, p. 101). On a related note, one can get to know a given
B by way of figures in B, instead of the above functions on B. Does
the figures-and-incidence (Conceptual Mathematics, pp. 249-253)
approach to knowing also involves two steps (like double dualization)?
Can we think of modelling, for example, an irreflexive directed graph
G as a parallel pair of functions
source, target: Arrows --> Dots
by way of taking points of map objects
1 --> C
(where C is a map object of Dot- or Arrow-shaped figures T --> G in
the given graph G; Conceptual Mathematics, p. 150) as analogous to
double dualization (albeit in the opposite direction)?
Thank you,
posina
namingthegiven.wordpress.com
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