| University | James Cook University (JCU) |
| Subject | CP5520: Advanced Databases and Applications |
Deductive Database
Consider a deductive database with the following rules:
Notice that PARENT(X, Y) means that X and Y are human beings and Y is the (biological) parent of X; ANCESTOR(X, Y) means that Y is the ancestor of X.
Consider the following fact base:
PARENT(john, steve), PARENT(john, olivia), PARENT(olivia, emma), PARENT(olivia, william).
- Construct either a model-theoretic interpretation or a proof-theoretic interpretation of the above rules using the given facts.
Consider that a database contains the following relations PARENT(X, Y), and a relation BIRTH(X, B), where B is the birth date of a person X.
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The following information is used for questions (b), (c), and (d).
Assume that we have the following family tree:
- State a new rule named SIBLING(X, Y) and construct a proof-theoretic interpretation of this rule to find all siblings.
- State a new rule named as DESCENDANT(X, Y) and construct a proof-theoretic interpretation of this rule to find all descendants of Martin. Note DESCENDANT(X, Y) means Y is a descendant of X.
- Given the following rules:
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