**Formal theory** can refer to:

- Another name for a theory which is expressed in formal language.
- An axiomatic system, something representable by symbols and its operators
- Formal theory from political science, the theoretical modeling of social systems based on game theory, dynamical systems theory, among other interdisciplinary fields.

### Other articles related to "formal theory":

Proof Sketch For Gödel's First Incompleteness Theorem - Self-referential Formula

... is crucial to the proof A formula of the

... is crucial to the proof A formula of the

**formal theory**that somehow relates to its own provability within that**formal theory**... Proving both q(n,G(P)) and violates the consistency of the**formal theory**... for all natural numbers n, violates ω-consistency of the**formal theory**...### Famous quotes containing the words theory and/or formal:

“Every *theory* is a self-fulfilling prophecy that orders experience into the framework it provides.”

—Ruth Hubbard (b. 1924)

“True variety is in that plenitude of real and unexpected elements, in the branch charged with blue flowers thrusting itself, against all expectations, from the springtime hedge which seems already too full, while the purely *formal* imitation of variety ... is but void and uniformity, that is, that which is most opposed to variety....”

—Marcel Proust (1871–1922)