Conjunctive & disjunctive normal form – Digital logic

Question 1 UGC NET June-2020      
What kind of clauses are available in conjunctive normal form?
A – Disjunction of literals
B – Disjunction of variables
C – Conjunction of literals
D – Conjunction of variables

Show Answer With Best Explanation

Answer – A
In Boolean logic, a formula is in conjunctive normal form (CNF) or clausal normal form if it is a conjunction of one or more clauses, where a clause is a disjunction of literals; otherwise put, it is a product of sums or an AND of ORs.
Example :
    ->B ^ C
    ->(A ˅ B ˅ ¬C)^(¬A ˅ B ˅ ¬C)

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