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Sigma KEE - filename
A relation between a
and an instance of
that specified the filename of the data on a particular computer file system. This relation is for a fully qualified filename including a device specification such as a drive letter or name, a directory, and a name. This can include names that are aliases for a different physical file location. It does not include the specification of a particular machine on a network, such as an internet domain name, although it may reference a device specification that ultimately resolves to a storage device on a network.
?STRING ?ENTITY) means that the thing ?ENTITY has the
?STRING as its name. Note that
are the two immediate
. The predicate
is used when the referring item is merely a tag without connotative content, while the predicate
is used for referring items that have such content.
Properties or qualities as distinguished from any particular embodiment of the properties/qualities in a physical medium. Instances of Abstract can be said to exist in the same sense as mathematical objects such as sets and relations, but they cannot exist at a particular place and time without some physical encoding or embodiment.
relating two items - its valence is two.
s are relations that are true only of pairs of things.
s are represented as slots in frame systems.
The universal class of individuals. This is the root node of the ontology.
The class of
s whose properties can be inherited downward in the class hierarchy via the
just in case it is not a
, i.e. just in case assigning values to every argument position except the last one does not necessarily mean that there is a value assignment for the last argument position. Note that, if a
is both a
, then it is a partial function.
is a sentence-forming
. Each tuple in the
is a finite, ordered sequence of objects. The fact that a particular tuple is an element of a
is denoted by '(*predicate* arg_1 arg_2 .. arg_n)', where the arg_i are the objects so related. In the case of
s, the fact can be read as `arg_1 is *predicate* arg_2' or `a *predicate* of arg_1 is arg_2'.
of relations. There are two kinds of
s both denote sets of ordered n-tuples. The difference between these two
es is that
s cover formula-forming operators, while
s cover term-forming operators.
Belongs to Class
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