Math Problem Statement

If p is true and q is false, find the truth value of p ∨ ¬q.

Solution

The problem asks to find the truth value of the logical expression p¬qp \lor \neg q given that:

  • pp is true,
  • qq is false.

Let’s break down the expression:

  1. Negation of qq (i.e., ¬q\neg q): Since qq is false, ¬q\neg q (not qq) is true.

  2. Disjunction (OR) p¬qp \lor \neg q:

    • The logical OR (\lor) is true if at least one of the operands is true.
    • pp is true, and ¬q\neg q is also true.
    • Since both pp and ¬q\neg q are true, the entire expression p¬qp \lor \neg q is true.

Final Answer: True

Would you like any further explanation or have additional questions?

Here are 5 related questions for further practice:

  1. What is the truth value of p¬qp \land \neg q given the same conditions?
  2. If both pp and qq are false, what is the truth value of pqp \lor q?
  3. How does the truth table of a disjunction pqp \lor q look?
  4. What is the truth value of ¬(pq)\neg (p \land q) if pp is true and qq is false?
  5. What is the difference between conjunction and disjunction in logic?

Tip: Always remember that in logical OR (\lor), if either value is true, the whole expression evaluates to true.

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Math Problem Analysis

Mathematical Concepts

Propositional Logic
Truth Tables
Logical Connectives

Formulas

p ∨ q: True if at least one operand is true
¬q: Negation of q, switches its truth value

Theorems

Law of Disjunction (OR)
Negation Rules in Logic

Suitable Grade Level

Grades 10-12