# KEHOME/knowledge/theory/Sowa/lattice.txt
# Jan/23/2003

#========================================#
# book hierarchy search example		 #
#   find all concepts named *lattice*	 #
#   and display their ancestors		 #
# excerpt from Knowledge Explorer output #
#========================================#

$ ke
...
<myview:.=existent> do read from kr.ho done;
# command <do read from kr.ho done>
...
<myview:.=existent> topiclist := do find od *lattice* done;
# production <topiclist := do find od *lattice* done>
# command <do find od *lattice* done>
*lattice*
LATTICE
lattice
lattice of categories
lattice operations
navigating the lattice of theories
...
<myview:.=existent> every x in $topiclist {$x isa* ?;};
# every <every x in $topiclist { $x isa* ? ; } ;>
# question <*lattice* isa* ?>
unit:*lattice*
\  pattern
\\    variable
\\\      attribute
\\\\        characteristic
\\\\\          existent
# question <LATTICE isa* ?>
LATTICE
\  group
\\    OBJECT
\\\      entity
\\\\        existent
# question <lattice isa* ?>
lattice
\  LATTICE
\\    group
\\\      OBJECT
\\\\        entity
\\\\\          existent
# question <lattice of categories isa* ?>
lattice of categories
\  2.3. Top-Level Categories
\\    2. Ontology
\\\      unit:Knowledge Representation
\\\\        book
# question <lattice operations isa* ?>
lattice operations
\  2.5. Defining Abstractions
\\    2. Ontology
\\\      unit:Knowledge Representation
\\\\        book
# question <navigating the lattice of theories isa* ?>
navigating the lattice of theories
\  6.5. Theories , Models , and the World
\\    6. Knowledge Soup
\\\      unit:Knowledge Representation
\\\\        book
<myview:.=existent> exit;
...
$