Math Problem Statement

Determine the truth value of the compound statement given that P is a false statement, q is a true statement, and r is a true statement. [(P ∧ ¬q) ∨ ¬r] ∧ (P ∧ r)

Solution

We are given a compound statement:

[(P¬Q)¬R](PR)[(P \land \neg Q) \lor \neg R] \land (P \land R)

with the following truth values:

  • PP is false,
  • QQ is true,
  • RR is true.

Step-by-Step Evaluation:

  1. Evaluate P¬QP \land \neg Q:

    • PP is false.
    • QQ is true, so ¬Q\neg Q is false.
    • Therefore, P¬Q=falsefalse=falseP \land \neg Q = \text{false} \land \text{false} = \text{false}.
  2. Evaluate ¬R\neg R:

    • RR is true, so ¬R\neg R is false.
  3. Combine (P¬Q)¬R(P \land \neg Q) \lor \neg R:

    • We have falsefalse\text{false} \lor \text{false}, which equals false.
  4. Evaluate PRP \land R:

    • PP is false.
    • RR is true.
    • So, PR=falsetrue=falseP \land R = \text{false} \land \text{true} = \text{false}.
  5. Final Compound Statement Evaluation:

    • Now, we have [(P¬Q)¬R](PR)[(P \land \neg Q) \lor \neg R] \land (P \land R).
    • Substitute the evaluated values: falsefalse\text{false} \land \text{false} equals false.

Conclusion:

The compound statement evaluates to false.

Would you like further details or explanations on any specific step? Here are some related questions:

  1. How do truth tables help in evaluating complex compound statements?
  2. What is the role of conjunction (\land) and disjunction (\lor) in logic?
  3. What happens if PP, QQ, and RR all have the same truth value?
  4. What is the significance of negation (¬\neg) in changing a statement’s truth value?
  5. Can we simplify the expression to directly find the truth value?

Tip: When dealing with compound statements, always break them down into smaller parts and evaluate each part step-by-step. This minimizes errors and helps in better understanding!

Ask a new question for Free

By Image

Drop file here or Click Here to upload

Math Problem Analysis

Mathematical Concepts

Propositional Logic
Logical Operators

Formulas

Conjunction (P ∧ Q)
Disjunction (P ∨ Q)
Negation (¬P)

Theorems

Truth Table Evaluation

Suitable Grade Level

Grades 10-12