NEW 2025 WGU C959 DISCRETE MATH QUESTIONS AND ANSWERS

NEW 2025 WGU C959 DISCRETE MATH
QUESTIONS AND ANSWERS



Proposition - ANSWER T/F statement


exclusive or - ANSWER AꚚB



inclusive or/disjunction - ANSWER AꓦB



conjunction - ANSWER AꓥB


What is the precedence for compound propositions? - ANSWER quantifier >
not > and > or > conditional/bi-conditional


Rows in truth table with N variables? - ANSWER 2^N


When are conditionals true/false? - ANSWER If p(T) then q(T) = T
If p(T) then q(F) = F
If p(F) then q(T) = T
If p(F) then q(F) = T


Biconditional - ANSWER iff, ↔

, tautology - ANSWER compound proposition that is always true regardless of
TV.


contradiction - ANSWER compound proposition that is always false,
regardless of TV


converse - ANSWER Proposition: if p then q
" ": if q then p


contrapositive - ANSWER proposition: if p then q"
": if not q then not p.


inverse - ANSWER proposition: if p then q"
": if not p then not q


logical equivalence - ANSWER Two compound propositions have the same TV
regardless of TVs of individual propositions. ≡ .



De Morgan's Laws - ANSWER ¬( p ꓦ q) ≡ (¬p ꓥ ¬q)

(¬p ꓥ ¬q) ≡¬( p ꓦ q)



Idempotent Laws - ANSWER p ꓦ p ≡ p

pꓥp≡p



Associative Laws - ANSWER (p ꓦ q) ꓦ r ≡ p ꓦ (q ꓦ r)

(p ꓥ q) ꓥ r ≡ p ꓥ (q ꓥ r)