120k views
1 vote
Use De Morgan's Laws to write an equivalent statement without using parentheses.

∼(∼p∧∼q)

Use De Morgan's Laws to write an equivalent statement without using parentheses. ∼(∼p-example-1

1 Answer

4 votes

The equivalent statement without parentheses is: (2) p ∨ q .

De Morgan's Laws to Simplify the Statement

De Morgan's Laws state that:

The negation of a conjunction (AND) is equivalent to the disjunction (OR) of the negations: ¬(p ∧ q) ≡ ¬p ∨ ¬q

The negation of a disjunction (OR) is equivalent to the conjunction (AND) of the negations: ¬(p ∨ q) ≡ ¬p ∧ ¬q

We want to use these laws to simplify the statement:

(1) ¬(¬p ∧ ¬q)Step 1: Apply De Morgan's Law for Conjunction:

Since we have a negation of a conjunction, we can use the first law:

¬(¬p ∧ ¬q) ≡ ¬¬p ∨ ¬¬q

Step 2: Apply Double Negation Law:

Double Negation Law says that:

¬(¬p) ≡ p

Applying this law to both terms in the expression:

¬¬p ∨ ¬¬q ≡ p ∨ q

Therefore, the equivalent statement without parentheses is:(2) p ∨ q

User Stdunbar
by
8.3k points

No related questions found

Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.4m questions

12.2m answers

Categories