Theory (disambiguation)
Appearance
Look up theory in Wiktionary, the free dictionary.
A theory is a speculative explanation or to a confirmed explanation. Theory may also refer to:
Analytical tools
- Mathematical theory, a self-consistent body of definitions, axioms, theorems, examples, and so on
- Theory (mathematical logic), a set of sentences (theorems) in a formal language
- Lawvere theory, a notion in category theory
- Scientific theory, a principle or body of principles for explaining observed facts or phenomena, such as cell theory and the theory of gravity
- Philosophical theory, the collective statements underlying a philosophy, school of thought, or belief system
- Literary theory, often just called "theory" by those in the field
- Theories in computer science, such as computational complexity theory, computability theory, and theory of computation
Other uses
- Theoria, in theological discussions
- Theory (clothing retailer)
- A type of argument in policy debate and Lincoln-Douglas debate