[41] Most Datalog engines put into practice considerable extensions of Datalog. Nonetheless, Datalog has a solid affect on these kinds of implementations, and several authors Will not trouble to differentiate them from Datalog as offered on this page. Accordingly, the apps talked about Within this section contain purposes of real looking implementa
A rule is referred to as ground if all of its atoms (head and entire body) are ground. A ground rule R1 is often a ground instance of another rule R2 if R1 is the result of a substitution of constants for many of the variables in R2. The Herbrand foundation of the Datalog method would be the list of all ground atoms that can be made While using the
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