logical reasoning

Universal Introduction Rule in Predicate Logic

The universal introduction rule in predicate logic allows inferring a general statement about all members of a category. This is…

4 days ago

Truth Tables: Understanding Logical Statements

A truth table systematically displays the truth value of a compound statement for all possible truth combinations of its individual…

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Pure Predicate Logic

Pure predicate logic, also known as pure first-order logic, is a formal system for reasoning about propositions and their relationships.…

4 days ago

Pure First-Order Logic

Pure first-order logic is a foundational system in logic, characterized by its exclusion of function symbols and identity. It relies…

4 days ago

Inference: Deriving Logical Conclusions

Inference is the process of drawing logical conclusions from established facts or premises. It's a fundamental cognitive skill used in…

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Existential Quantifier

The existential quantifier (∃) in predicate logic asserts that at least one element within a domain satisfies a given predicate.…

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Existential Introduction

A rule of inference in logic that allows the introduction of an existential quantifier (∃). It asserts the existence of…

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Conjunction Elimination

Conjunction elimination is a fundamental rule of inference in propositional logic. It permits the deduction of a single conjunct from…

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Analethic Logic: Exploring a Three-Valued System

Analethic logic is a three-valued system featuring truth values 'true', 'false', and a 'neither true nor false' gap. It designates…

4 days ago