Sigma Percentile
JEE Main 2023 (24 January Shift 2)
LEVELJEE Main

Animated Solution for Mathematics - Sets and Relations: Let and be two statements. Then is equivalent to

Select Answer:

Visualized Solution

Understanding the Problem

  • Given Expression:
  • Goal: Simplify to an equivalent logical form.

Applying De Morgan's Law

  • De Morgan's Law:
  • Let and
  • Result:

Simplifying the Implication

  • Implication Identity:
  • Substitute into the identity.
  • We get:
  • Expression becomes:

Second De Morgan's Application

  • Apply De Morgan's Law to the second term:
  • Double Negation:
  • Simplified Expression:

Distributive Law

  • Distributive Law:
  • Here, , , and
  • Applying the law:

Identifying the Tautology

  • Complement Law: (where is a Tautology)
  • A statement OR its negation is always True.
  • Substitute into the expression:

Final Result

  • Identity Law:
  • True AND any statement is equivalent to the statement itself.
  • Final Result:
  • This matches Option 3.

The Sigma Insight: Types of Sets and Set Operations

Analyzing the Setup

We are tasked with simplifying the logical expression:
This expression may appear complex, but by applying fundamental logical laws systematically, we can dismantle it layer by layer.

Applying De Morgan's Law

We begin by addressing the outermost negation acting upon a conjunction. According to De Morgan's Law, the negation of a conjunction is the disjunction of the negations.
Applying this law, we obtain:

Resolving the Implication

Next, we focus on the inner term . We utilize the logical identity for implication, which states that .
Applying this to the term , we get:
Substituting this back into our main expression, we have:

Final Simplification

We apply De Morgan's Law once more to the second part of the expression. The negation of becomes , the disjunction flips to a conjunction , and the negation of becomes .
The expression now reads:
To simplify further, we apply the Distributive Law, treating the logical operators similarly to algebraic expansion:
The term represents the Law of Excluded Middle, which is a tautology (). Our expression simplifies to:
By the Identity Law, . Therefore, the final simplified result is:

Similar Questions

JEE Main 2023 (10 April Shift 2)
LEVELBoard

The statement is equivalent to

(A)
(B)
(C)
(D)
JEE Main 2023 (13 April Shift 2)
LEVELBoard

The statement is equivalent to

(A)
(B)
(C)
(D)
JEE Main 2023 (24 January Shift 1)
LEVELJEE Main

The compound statement is equivalent to

(A)
((\sim P) \vee Q) \wedge((\sim Q) \vee P)
(B)
(\sim Q) \vee P
(C)
((\sim P) \vee Q) \wedge(\sim Q)
(D)
(\sim P) \vee Q
JEE Main 2020 - 3 Sep (Morning)
LEVELBoard

The proposition is equivalent to:

(A)
(B)
(C)
(D)
JEE Main 2020 (7 January Shift 1)
LEVELBoard

The logical statement is equivalent to

(A)
(B)
(C)
(D)
JEE Main 2023 (08 April Shift 2)
LEVELJEE Main

The negation of is equivalent to

(A)
(B)
(C)
(D)
JEE Main 2022 (27 June Shift 1)
LEVELJEE Main

The Boolean expression is equivalent to :

(A)
(B)
(C)
(D)
JEE Main 2008
LEVELBoard

The statement is equivalent to

(A)
(B)
(C)
(D)
JEE Main 2021 (27 July Shift 1)
LEVELBoard

The compound statement is equivalent to:

(A)
(B)
(C)
(D)
JEE Main 2019 (09 April Shift 1)
LEVELJEE Main

For any two statements p and q, the negation of the expression is

(A)
(B)
(C)
(D)