INDEX 473
Regular:
expression, 305
grammar, 306
graph, 163
language, 306
Relation, 23–25
Relative:
complement, 6
frequency, 123
Relatively prime, 273, 449
Remainder, 268, 447
function, 48
Theorem, 447
Repeated trials, 130
Residue system, 275
Ring, 443
of polynomials, 444
with identity element
1, 444
Root:
of a binary tree, 235
of a polynomial, 447
Rooted trees, 204
ordered, 205
Row (of a matrix), 410
canonical form, 418
equivalence, 418
operations (elementary),
417
Sample:
mean, 136
space, 123
Scalar, 409
multiplication, 410, 411
Schroeder-Bernstein Theorem,
56
Search:
breadth first, 176, 215
depth-first, 173, 214
linear, 58
Search tree, binary, 243
Semigroup, 304, 435
product, 438
Sequences, 50
Fibonacci, 54, 115
Sets, 1
Short-lex order, 339
Shortest path, 162
algorithm, 216
Similar:
binary trees, 236
ordered sets, 344
Simple:
directed graph, 206
graph, 157
path, 159
Sink, 203
Size of a natrix, 411
Sort, topological, 217
Source, 203
Spanning tree, 164
path, 203
Sparse, 171, 206
Special sequences, 381
Square matrices, 414
Stabilizer, 455
Stack, 155
Standard deviation, 134
Star graph, 168
Start symbols, 310
State,
diagram, 307, 329
table, 324
Strings, 303
Strong, 204
Strongly connected, 208
Subgroup, 440
normal, 440
Subsemigroup, 435
Subset, 2
proper, 3
Substitution, Principle of, 74
Subword, 304
Succeeds, 332
Success, 131
Successor, 201
list, 201
Sum rule, 88
Sum-of-products, 372
Summation symbol,51
Sums of random variables,
132
Supremum (sup), 342
Surjective function, 46
Syllogism, Law of, 77
Symmetries, group of, 455
Symmetric:
difference, 6
group Sn, 439
relation, 33
Synthetic division, 56, 448
Tables, truth, 73
Tape (Turing machine), 324
expression, 327
output, 324
Tautology, 74
Terminal node, 235
Ternary relation, 33
Top of a stack, 155
Topological sort, 217
Trace of a matrix, 414
Trail, 160
Euletrian, 160
traversable, 195
Transfinite induction, 346
Transitive relation, 29
closure of, 31
Transpose of a matrix, 414
Traveling salesman problem,
186
Traversable multigraph, 160
Traversal of binary trees,
240
Tree, 164
binary, 235
spanning, 164
2-tree, 237
Triangular form, 418
Trichotomy, law of, 265
Trivial graph, 158
Truth:
set, 77
tables, 73
values, 70
Turing machine, 314, 329
Types of grammars, 312
UFD (unique factorization
domain), 445
Unary operation, 432
Uncountable set, 8
Unilaterally connected, 204
Union of sets, 4
Unique factorization domain,
445
Unit, 368, 445
matrix In, 414
Unity (identity) element in a ring,
444
Universal:
address system, 205
quantifiers, 78
setU,3
Unordered partition, 108
Upper bound, 348
Usual order, 338
Utility graph, 168
V(G) (vertices of a graph),
201
Valid arguments, 76
Variable, 43, 310
random, 132
Variance, 134
Var(X) (variance), 134
Vectors, 409
Venn diagram, 3
Vertex, 156, 201
coloring, 168
file, 168, 212
isolated, 160