
738 Subject Index
Positive disjunctive program,
74
Positive edge,
97-98
Positive literals, 93
Positive programs, 94, 128,
136,
195
Positive subgoals, 170
Positivistic databases, 197
Possible world, 374
Postive unit clauses, 151
Powers of an operator,
100-101
P-queries, 280
PRAM (Parallel Random Ac-
cess Machine) al-
gorithms, 549-554, 565,
572
Predicate priority relation,
203-204
Predicates, 199, 203, 367,
520-521
adorned, 488
bounded, 301
concept, 282
consequent, 279
dynamic, 367, 372,
374-375
dynamic base, 381
dynamic view, 381
extensional, 660, 664, 665,
691
intensional, 660, 664, 665
principal, 652
of queries, 278
recursive, 665
reorderin ...