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Argumentation theory

Counterexample

Turned A

Turned A (capital: Ɐ, lowercase: ɐ, math symbol ∀) is a symbol based upon the letter A.

Argumentum ad populum

Case-based reasoning

Heuristic

Inference

Inferences are steps in reasoning, moving from premises to conclusions.

Informal logic

Kripke semantics

Occam's razor

Quantifier (logic)

Truth table

Critical thinking

Critical thinking, also called critical analysis, is clear, rational thinking involving critique.

Question

Polemic

List of paradoxes

This is a list of paradoxes, grouped thematically.

Presupposition

Analogy

Argument from ignorance

Generalization

Metamathematics

Metamathematics is the study of mathematics itself using mathematical methods.

Nonsense

Principle of sufficient reason

The principle of sufficient reason states that everything must have a reason or a cause.

Self-reference

Polysyllogism

Dichotomy

A dichotomy /daɪˈkɒtəmi/ is a partition of a whole (or a set) into two parts (subsets).

Philosophic burden of proof

Apophasis

Index of logic articles