WGU D420 DISCRETE MATH 1 FINAL
PAPER 2026 QUESTIONS AND 100%
CORRECT ANSWERS
⩥ Disjunction (or). Answer: A logical operator that joins two
propositions and is true if and only if one or both of the propositions is
true.
⩥ Conjunction (and). Answer: a logical operator that joins two
propositions and is true if and only if both the propositions (conjuncts)
are true
⩥ Set. Answer: A collection of distinct elements or objects
⩥ Element. Answer: An individual object in a set
⩥ Subset. Answer: A set whose elements are all contained in another set
⩥ Union. Answer: The set of elements common to two sets
⩥ Biconditional. Answer: An operation that is true when both statements
are either true or false.
, ⩥ When a conditional statement false?. Answer: False only when q is
true and p is false, in all other cases its true
⩥ tautology. Answer: A logical statement that is always true, no matter
what the truth values of it components are
⩥ Contradiction. Answer: A direct opposition between things compared;
inconsistency
⩥ What does ≡ represent?. Answer: Logical equivalence
⩥ Idempotent. Answer: denoting an element of a set which is unchanged
in value when multiplied or otherwise operated on by itself.
⩥ Predicates. Answer: A logical statement whose truth value is a
function of one or more variables
⩥ domain. Answer: the set of all possible values for a variable
⩥ ∀ "for all" is a.... Answer: Universal Quantifier
⩥ ∀x P(x) is called a.... Answer: Universally quantified statement
PAPER 2026 QUESTIONS AND 100%
CORRECT ANSWERS
⩥ Disjunction (or). Answer: A logical operator that joins two
propositions and is true if and only if one or both of the propositions is
true.
⩥ Conjunction (and). Answer: a logical operator that joins two
propositions and is true if and only if both the propositions (conjuncts)
are true
⩥ Set. Answer: A collection of distinct elements or objects
⩥ Element. Answer: An individual object in a set
⩥ Subset. Answer: A set whose elements are all contained in another set
⩥ Union. Answer: The set of elements common to two sets
⩥ Biconditional. Answer: An operation that is true when both statements
are either true or false.
, ⩥ When a conditional statement false?. Answer: False only when q is
true and p is false, in all other cases its true
⩥ tautology. Answer: A logical statement that is always true, no matter
what the truth values of it components are
⩥ Contradiction. Answer: A direct opposition between things compared;
inconsistency
⩥ What does ≡ represent?. Answer: Logical equivalence
⩥ Idempotent. Answer: denoting an element of a set which is unchanged
in value when multiplied or otherwise operated on by itself.
⩥ Predicates. Answer: A logical statement whose truth value is a
function of one or more variables
⩥ domain. Answer: the set of all possible values for a variable
⩥ ∀ "for all" is a.... Answer: Universal Quantifier
⩥ ∀x P(x) is called a.... Answer: Universally quantified statement
