MODELING CERTIFICATION EVALUATION
EXAMS SET FULL QUESTIONS AND
COMPLETE SOLUTION
●● What are variables in mathematical discourse?
Answer: Symbols used to represent numbers or values in mathematical
expressions.
●● What is the purpose of universal statements?
Answer: To assert that a property holds for all elements in a particular
set.
●● What does existential statement mean?
Answer: It claims that there exists at least one element in a set for which
a property holds.
●● Define conditional statements.
Answer: Statements that express a relationship of the form 'If P, then Q'.
●● What is set-roster notation?
Answer: A way to describe a set by listing its elements explicitly.
,●● What is set-builder notation?
Answer: A notation that describes a set by a property that its members
must satisfy.
●● What is a subset?
Answer: A set whose elements are all contained within another set.
●● What is a Cartesian product?
Answer: The set of all ordered pairs from two sets.
●● Define a relation.
Answer: A set of ordered pairs that establishes a relationship between
elements of two sets.
●● What is a function?
Answer: A relation where each input is associated with exactly one
output.
●● What is an arrow diagram?
Answer: A visual representation of a relation showing how elements
from one set are related to another.
,●● What is the degree of a vertex in a graph?
Answer: The number of edges incident to the vertex.
●● What are tautologies?
Answer: Statements that are always true regardless of the truth values of
their components.
●● Define a contradiction.
Answer: A statement that is always false.
●● What is Modus Ponens?
Answer: A valid argument form stating that if 'P implies Q' and 'P' is
true, then 'Q' must also be true.
●● What is Modus Tollens?
Answer: A valid argument form stating that if 'P implies Q' and 'Q' is
false, then 'P' must also be false.
●● What are fallacies in logical arguments?
Answer: Errors in reasoning that render an argument invalid.
●● What is a Boolean expression?
, Answer: An expression that evaluates to true or false based on logical
operations.
●● What is the significance of digital logic circuits?
Answer: They use Boolean algebra to design and analyze circuits for
computing and digital systems.
●● What is the contrapositive of a conditional statement?
Answer: The statement formed by negating both the hypothesis and
conclusion and reversing them.
●● What is the converse of a conditional statement?
Answer: The statement formed by reversing the hypothesis and
conclusion.
●● What are necessary and sufficient conditions?
Answer: Conditions that must be met for a statement to be true;
necessary means it must be true for the statement to hold, sufficient
means if it is true, the statement holds.
●● What is a directed graph?
Answer: A graph where edges have a direction, indicating a one-way
relationship between vertices.