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C00001 00001
C00002 00002	Language of common sense
C00003 00003	apr 16
C00005 00004	de re belief attributions
C00006 00005	Queries and Conjectures in Economics
C00007 ENDMK
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Language of common sense

	The form is that of logic, but

	1. predication to constants is clearly present
fast(John), husband(John, Mary),transitive(ancestor), relation(traansitive)

	2. while quantified statements are present, we have some
reservations about whether the form or semantics of quantified
statements are the same as in logic.  No doubt we want variables
in some form.

	3. Extensionality is weakened or omitted, e.g.
we don't regard two concepts as identical if they have the same
extension.
apr 16

Generate and test

	A set may be given by either a generator or a tester.  We are
best off if we have both.  Representation of the set as a Cartesian
product of generable sets is often useful.

	If we have two sets both represented by testers, we can
test their intersection.  If one is represented by a generator and
the other by a tester, we can generate the intersection by generating
A and testing each object for membership in B.

	At this level of generality, this is all we can do.  However,
the interesting cases for AI may arise when we can do more, e.g.
when testers are presented in such a way that
 generators can be manufactured from them.  Also when a generator
for an intersection can be made that doesn't generate one of the
sets.

	Can we develop a typology of presentations of sets and discuss
when they admit such things?
de re belief attributions

From one point of view, a de re belief attribution is just
another kind of de dicto..  Fido is looking for Rover" merely asserts
that Fido has a different and strange to humans internal
languuage in which what
he is looking for is expressed.  From another point of view,
however, a relation between Fido and the physical object
Rover is being described.
Queries and Conjectures in Economics

1. Over the last half century, how have the ratios of hourly
wages in different occupations varied.  Examples: long distance
truck driver:mailman:automobiler worker:carpenter:common laborer
in construction:minimum wage:dishwasher in restaurant:congressman
:professor.  It is particularly interesting to consider the ratios
of wages of various providers of services and consumers of them.