Math Problem Statement

Determine the truth value of the compound statement [(P ∪ ¬Q) ∧ R] ∪ [(P ∧ ¬Q) ∧ ¬R] ∪ [P ∧ (¬Q ∨ ¬R)] given that P is false, Q is true, and R is true.

Solution

The problem in the image asks to determine the truth value of a compound statement given the following information:

  • PP is false (P=FP = F)
  • QQ is true (Q=TQ = T)
  • RR is true (R=TR = T)

The compound statement is: [ {[(P \cup \neg Q) \land R] \cup [(P \land \neg Q) \land \neg R] } \cup [P \land (\neg Q \lor \neg R)] ]

Let's break this down step-by-step using the truth values provided.

Step 1: Break down the compound statement into parts

  1. P¬QP \cup \neg Q

    • P=FP = F
    • ¬Q=F\neg Q = F (since Q=TQ = T)
    • P¬Q=FF=FP \cup \neg Q = F \cup F = F
  2. (P¬Q)R(P \cup \neg Q) \land R

    • From above, P¬Q=FP \cup \neg Q = F
    • R=TR = T
    • FT=FF \land T = F
  3. P¬QP \land \neg Q

    • P=FP = F
    • ¬Q=F\neg Q = F
    • FF=FF \land F = F
  4. (P¬Q)¬R(P \land \neg Q) \land \neg R

    • From above, P¬Q=FP \land \neg Q = F
    • ¬R=F\neg R = F (since R=TR = T)
    • FF=FF \land F = F
  5. {[(P¬Q)R][(P¬Q)¬R]}\{[(P \cup \neg Q) \land R] \cup [(P \land \neg Q) \land \neg R]\}

    • Both parts are FF=FF \cup F = F
  6. ¬Q¬R\neg Q \lor \neg R

    • ¬Q=F\neg Q = F
    • ¬R=F\neg R = F
    • FF=FF \lor F = F
  7. P(¬Q¬R)P \land (\neg Q \lor \neg R)

    • P=FP = F
    • (¬Q¬R)=F(\neg Q \lor \neg R) = F
    • FF=FF \land F = F

Step 2: Evaluate the whole statement

Now the final expression is: FF=FF \cup F = F

Conclusion

The truth value of the compound statement is false.

Would you like more details or have any questions?


Here are 5 relative questions based on the solution:

  1. What are the truth tables for conjunction, disjunction, and negation?
  2. How would the truth value change if PP were true?
  3. Can you simplify logical statements using De Morgan's laws?
  4. What is the significance of parentheses in logical statements?
  5. How would the compound statement be evaluated if QQ were false?

Tip: When evaluating compound logical statements, always break them into smaller parts and solve each part step by step.

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Math Problem Analysis

Mathematical Concepts

Propositional Logic
Logical Operators

Formulas

Disjunction (∪)
Conjunction (∧)
Negation (¬)

Theorems

Truth Table Evaluation
Logical Equivalences

Suitable Grade Level

College-level Logic or Discrete Mathematics