Obversion is a logical operation transforming a categorical proposition into an equivalent statement. It involves negating the predicate and changing…
The obverse is a logical operation that negates a proposition's predicate and flips its quality (affirmative/negative) while preserving truth value.…
A standardized method for structuring logical formulas like CNF or DNF. Normal forms simplify logical expressions, aiding in analysis, comparison,…
A negative proposition asserts the absence or non-existence of something, or denies a property of an object. It's a fundamental…
Negation Normal Form (NNF) is a standard way to represent logical formulas. In NNF, negations only apply to atomic propositions,…
Negation introduction is a natural deduction rule enabling the derivation of negation. It typically involves assuming the opposite and deriving…
Negation is a fundamental logical operation that reverses the truth value of a statement. It transforms true propositions into false…
In logic and philosophy, the term 'molecule' metaphorically represents a complex entity or concept constructed from simpler, atomic components. This…
Modus Tollens is a fundamental rule of inference in logic. It states that if a conditional statement is true, and…
Modus Ponens is a fundamental rule of inference in logic. It states that if a conditional statement ('if P then…