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Logic
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Logic
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Overview
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Academic
areas
*
Argumentation theory
Axiology
Critical thinking
Computability theory
Formal semantics
History of logic
Informal logic
Logic in computer science
Mathematical logic
Mathematics
Metalogic
Metamathematics
Model theory
Philosophical logic
Philosophy
Philosophy of logic
Philosophy of mathematics
Proof theory
Set theory
Foundational
concepts
*
Abduction
Analytic truth
Antinomy
A priori
Deduction
Definition
Description
Entailment
Induction
Inference
Logical consequence
Logical form
Logical implication
Logical truth
Name
Necessity
Meaning
Paradox
Possible world
Presupposition
Probability
Reason
Reasoning
Reference
Semantics
Statement
Strict implication
Substitution
Syntax
Truth
Truth value
Validity
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Philosophical logic
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Critical thinking
and
Informal logic
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Analysis
Ambiguity
Argument
Belief
Bias
Credibility
Evidence
Explanation
Explanatory power
Fact
Fallacy
Inquiry
Opinion
Parsimony
Premise
Propaganda
Prudence
Reasoning
Relevance
Rhetoric
Rigor
Vagueness
Theories of deduction
*
Constructivism
Dialetheism
Fictionalism
Finitism
Formalism
Intuitionism
Logical atomism
Logicism
Nominalism
Platonic realism
Pragmatism
Realism
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Metalogic
and
metamathematics
*
Cantor's theorem
Church's theorem
Church's thesis
Consistency
Effective method
Foundations of mathematics
Gödel's completeness theorem
Gödel's incompleteness theorems
Soundness
Completeness
Decidability
Interpretation
Löwenheim–Skolem theorem
Metatheorem
Satisfiability
Independence
Type–token distinction
Use–mention distinction
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Mathematical logic
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General
*
Formal language
Formation rule
Formal system
Deductive system
Formal proof
Formal semantics
Well-formed formula
Set
Element
Class
Classical logic
Axiom
Natural deduction
Rule of inference
Relation
Theorem
Logical consequence
Axiomatic system
Type theory
Symbol
Syntax
Theory
Traditional logic
*
Proposition
Inference
Argument
Validity
Cogency
Syllogism
Square of opposition
Venn diagram
Propositional calculus
and
Boolean logic
*
Boolean functions
Propositional calculus
Propositional formula
Logical connectives
Truth tables
Predicate
*
First-order
Quantifiers
Predicate
Second-order
Monadic predicate calculus
Set theory
*
Set
Empty set
Enumeration
Extensionality
Finite set
Function
Subset
Power set
Countable set
Recursive set
Domain
Range
Ordered pair
Uncountable set
Model theory
*
Model
Interpretation
Non-standard model
Finite model theory
Truth value
Validity
Proof theory
*
Formal proof
Deductive system
Formal system
Theorem
Logical consequence
Rule of inference
Syntax
Computability theory
*
Recursion
Recursive set
Recursively enumerable set
Decision problem
Church–Turing thesis
Computable function
Primitive recursive function
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Non-classical logic
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Modal logic
*
Alethic
Axiologic
Deontic
Doxastic
Epistemic
Temporal
Intuitionism
*
Intuitionistic logic
Constructive analysis
Heyting arithmetic
Intuitionistic type theory
Constructive set theory
Fuzzy logic
*
Degree of truth
Fuzzy rule
Fuzzy set
Fuzzy finite element
Fuzzy set operations
Substructural logic
*
Structural rule
Relevance logic
Linear logic
Paraconsistent logic
*
Dialetheism
Description logic
*
Ontology
Ontology language
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Logicians
*
Anderson
Aristotle
Averroes
Avicenna
Bain
Barwise
Bernays
Boole
Boolos
Cantor
Carnap
Church
Chrysippus
Curry
De Morgan
Frege
Geach
Gentzen
Gödel
Hilbert
Kleene
Kripke
Leibniz
Löwenheim
Peano
Peirce
Putnam
Quine
Russell
Schröder
Scotus
Skolem
Smullyan
Tarski
Turing
Whitehead
William of Ockham
Wittgenstein
Zermelo
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Lists
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Topics
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Outline of logic
Index of logic articles
Mathematical logic
Boolean algebra
Set theory
Other
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Logicians
Rules of inference
Paradoxes
Fallacies
Logic symbols
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Portal
Category
Outline
WikiProject
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