Object Language Explained
An object language is the system or language under examination. It's distinct…
Numerical Quantifiers in Logic and Language
Numerical quantifiers specify exact quantities for predicates, like 'exactly three' or 'at…
Non-deterministic Turing Machine
A theoretical computational model where each step allows multiple choices, enabling simultaneous…
Non-Alethic Modal Logic
A branch of modal logic exploring modes of truth beyond necessity and…
New Foundations
Quine's New Foundations is a set theory designed to bypass paradoxes of…
Neo-Fregeanism: A Modern Approach to Logicism
Neo-Fregeanism revives Frege's logicist project, aiming to base mathematics on logic. It…
Understanding Negative Propositions
A negative proposition asserts the absence or non-existence of something, or denies…
Negation Normal Form (NNF)
Negation Normal Form (NNF) is a standard way to represent logical formulas.…
Negation Elimination in Natural Deduction
Negation elimination is a fundamental rule in natural deduction. It permits inferring…
Negation Completeness in Logic
Negation completeness signifies a logical system's ability to prove either any given…