**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

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

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

“No one thinks anything silly is suitable when they are an adolescent. Such an enormous share of their own behavior is silly that they lose all proper perspective on silliness, like a baker who is nauseated by the sight of his own eclairs. This provides another good argument for the emerging *theory* that the best use of cryogenics is to freeze all human beings when they are between the ages of twelve and nineteen.”

—Anna Quindlen (20th century)

“Then the justice,

In fair round belly with good capon lined,

With eyes severe and beard of *formal* cut,

Full of wise saws and modern instances;

And so he plays his part.”

—William Shakespeare (1564–1616)