In particular, the theory of natural numbers has no recursive complete and consistent theory.

In logic, a consistent theory is one that does not contain a contradiction.

He had created a consistent theory to describe magic, which would allow Magi to share information, using a common frame of reference.

Since 1974, I have been working on combining general relativity and quantum mechanics into a consistent theory.

These account for two of the five consistent superstring theories in ten dimensions.

The set of all consistent theories of a first-order language.

Note that a conservative extension of a consistent theory is consistent.

The first happened in 1984 when it was shown that a consistent theory of all the forces of nature could be constructed from strings.

The gauge anomaly, which must cancel in any consistent physical theory.

Without a consistent theory, there can be no meaningful statement about the physical conditions associated with the universe before this point.