Math Problem Statement

çözer misin

P → (Q → P ∧ Q);

Solution

This is a propositional logic statement:

P → (Q → P ∧ Q)

Let’s solve it step-by-step:


Step 1: Understand the logical formula

  • P → (Q → P ∧ Q) means:
    "If P is true, then if Q is true, P ∧ Q must also be true."

Step 2: Break it down using logical equivalences

  1. Implication rewrite: The implication P → X is equivalent to ¬P ∨ X.
    Rewrite the formula:
    ¬P(¬Q(PQ))¬P ∨ (¬Q ∨ (P ∧ Q))

  2. Distribute the parentheses:
    Simplify ¬Q ∨ (P ∧ Q) using the distributive property:
    ¬QPQ¬Q ∨ P ∨ Q

    (This step is true because ¬Q ∨ (P ∧ Q) means either ¬Q is true, or P and Q are both true. Simplifying this leads to ¬Q ∨ P ∨ Q.)

  3. Combine terms:
    Notice that ¬P ∨ (¬Q ∨ P ∨ Q) can be combined further:
    ¬PP¬QQ¬P ∨ P ∨ ¬Q ∨ Q

    • ¬P ∨ P simplifies to True (a tautology).
    • ¬Q ∨ Q also simplifies to True (a tautology).

    So the entire expression simplifies to True.


Final Answer:

The statement P → (Q → P ∧ Q) is always True (a tautology).


Would you like me to explain any specific part of the solution further?


Related Questions:

  1. What are the rules for simplifying logical expressions?
  2. How does the implication P → Q translate into logical equivalence?
  3. Why does ¬P ∨ P simplify to a tautology (True)?
  4. What is the significance of a tautology in propositional logic?
  5. How can truth tables be used to verify tautologies?

Tip:

When solving logical expressions, always start by rewriting implications as disjunctions (¬P ∨ Q) to make simplifications easier!

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Math Problem Analysis

Mathematical Concepts

Propositional Logic
Logical Equivalences
Tautology

Formulas

Implication rewrite: P → Q ≡ ¬P ∨ Q
Distributive property of logical operators

Theorems

Tautology in Propositional Logic
Simplification Laws

Suitable Grade Level

University Level (or Advanced High School)