IV. SEMANTICAL RULES
Analyticity at first seemed most naturally definable by appeal to a realm of meanings.
The notion of analyticity about which we are worrying is a purported relation between statements and languages:
to begin with, an artificial language L0 whose semantical rules have the form
explicitly of a specification, by recursion or otherwise,
tell us that such and such statements, and only those, are the analytic statements of L0. Now here
the difficulty is simply that the rules contain the word ‘analytic,’ which we do not understand!
analytic statements are supposed to be true.
semantical rule … stipulates, recursively or otherwise, a
… statements which … are to count as true.
a statement is analytic if it is (not merely
true but) true according to the semantical rule.
we are now appealing to an unexplained phrase ‘semantical rule.’
It may be instructive to compare the notion
of semantical rule with that of postulate. Relative
to the given set of postulates, it is easy to say that
what a postulate is: it is a member of the set.
Relative to a given set of semantical rules, it is
equally easy to say what a semantical rule is.
It might conceivably be protested that an artificial language L (unlike a natural one) is a language in the ordinary sense plus a set of explicit semantical rules
Semantical rules determining the analytic statements of
an artificial language are of interest only in so far as we already understand the notion of analyticity;
It is obvious that truth in general depends on both language and extra-linguistic fact.
for all its a priori reasonableness, a boundary between analytic and synthetic statement simply has not been drawn.
First we transform the synthetic side of the analytic/synthetic distinction into a finite list of “atomic facts” (of general knowledge) that form the basis of a verbal model of the conventional world. This utterly ignores any and all metaphysical speculation. We are simply stipulating a set of axioms.
“Cats” [are a type of] “Animal”
“Animals” [are a type of] “Living Thing”
“Banks” [are a type of] “Financial Institution”
These stipulations are the ultimate foundation
of all knowledge expressed in language. Knowedge
expressed in language cannot have any other basis.
From these axioms of natural language we allow the single inference step of semantic entailment using semantic rules (specified syntactically) that operate on finite strings.
The CycL language already has a very rich set of semantic rules that are specified syntactically that operate on GUID place holders for the unique sense meanings of words.
These are arranged in a knowledge ontology / simple type hierarchy. Thus synonyms simply have the same GUID.