WGU C960 DISCRETE MATH II EXAM PREP TEST BANK VERIFIED QUESTIONS AND CORRECT ANSWERS

WGU C960 DISCRETE MATH II EXAM PREP
TEST BANK VERIFIED QUESTIONS AND
CORRECT ANSWERS

●● What is a quantifier?
Answer: A logical operator that specifies how many elements satisfy a
statement.


●● What is the existential quantifier?
Answer: States that at least one element satisfies a statement.


●● What is the symbol for the existential quantifier?
Answer: ∃


●● How do you read ∃?
Answer: There exists


●● What does ∃x∈A:f(x) mean?
Answer: There exists an element x in A such that f(x) is true.


●● How many examples are needed to satisfy an existential statement?
Answer: Only one.

, ●● What is the universal quantifier?
Answer: States that every element satisfies a statement.


●● What is the symbol for the universal quantifier?
Answer: ∀


●● How do you read ∀?
Answer: For all


●● What does ∀x∈A:f(x) mean?
Answer: For every element x in A the statement f(x) is true.


●● How many counterexamples are needed to disprove a universal
statement?
Answer: One.


●● What does ∃x ∀y:f(x
Answer: y) mean?,There exists an x such that for every y the statement
f(x,y) is true.


●● What does ∀x ∃y:f(x