Formal Description
Like first order logic (FOL), a syntax defines which collections of symbols are legal expressions in a Description Logic (DL), and semantics determine meaning. Unlike FOL, a DL may have several well known syntactic variants.
Read more about this topic: Description Logic
Famous quotes containing the words formal and/or description:
“There must be a profound recognition that parents are the first teachers and that education begins before formal schooling and is deeply rooted in the values, traditions, and norms of family and culture.”
—Sara Lawrence Lightfoot (20th century)
“It is possible—indeed possible even according to the old conception of logic—to give in advance a description of all ‘true’ logical propositions. Hence there can never be surprises in logic.”
—Ludwig Wittgenstein (1889–1951)