Math Problem Statement
Is 𝑝 → 𝑞 ≡ ¬𝑝 ∨ 𝑞?
Solution
Yes, the logical implication (read as "if , then ") is indeed logically equivalent to (read as "not or "). This is a well-known equivalence in propositional logic.
Here’s why:
- can be interpreted as saying that "if is true, then must also be true."
- This is equivalent to saying that either is false (i.e., is true), or is true.
Hence, .
Truth table for verification:
T | T | T | T |
T | F | F | F |
F | T | T | T |
F | F | T | T |
Both expressions yield the same truth values, proving they are logically equivalent.
Would you like to explore more on logical equivalences or anything else?
Related Questions:
- What is the truth table for ?
- Can you explain the difference between and ?
- How do De Morgan's laws relate to ?
- What are tautologies and contradictions in logic?
- How can we prove using Boolean algebra?
Tip:
Always use truth tables when trying to establish logical equivalences—they visually demonstrate the consistency of two logical statements!
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Math Problem Analysis
Mathematical Concepts
Propositional Logic
Logical Equivalences
Truth Tables
Formulas
p → q ≡ ¬p ∨ q
Theorems
Logical Implication
Disjunction (OR)
Negation (NOT)
Suitable Grade Level
Grades 10-12