The phrase "a universal theory of" is correct and usable in written English.
It can be used when discussing a theory that aims to explain a wide range of phenomena or concepts across different fields or disciplines.
Example: "The physicist proposed a universal theory of gravitation that could apply to both celestial and terrestrial bodies."
Alternatives: "a comprehensive theory of" or "a general theory of".
The mere existence of two major approaches with different strengths calls into question whether either of them could serve as a basis for a universal theory of intelligence.
Here are a few questions D.A.R.P.A. posed to the "ists": Does the structure and function of stories vary considerably across cultural contexts or is there a universal theory of story?
From this point on, Freud often applies his own (and later his patients') experiences and thoughts in his writings as he works to create a universal theory of the mind and human nature.
For the first time the complete analytical dynamic model, corresponding to the McCabe Thiele static model, is obtained, thus opening the possibility of formulating a universal theory of binary distillation column control, instead of studying particular cases.
Although a universal theory of ductile fracture is still lacking, this part contains a comprehensive coverage of the topic balancing phenomenology and mechanisms on one hand and microstructure-based modeling and simulation on the other hand, with application examples provided.
A universal theory of physics thus requires a consistent quantum theory of gravity.
Despite decades of effort, a general consensus on the validity of a universal theory for the large variety of glass systems is lacking2,3 partly because of difficulties encountered in the experimental testing of the theoretical predictions4,5.
Remember too that he was not in search of a universal theory to explain biological diversification.
He does not fall for the Hobbesian folly of inflating a still inchoate method into a decisive, universal theory of morality.
Einstein's classical theory of gravitation, as well as the equation of h ab, is not conformally invariant, thus could not be considered as a comprehensive universal theory of gravitational fields.
We recall general metalogical axioms for a reflective logic based on the notion of a universal theory, that is, a theory that can simulate the deductions of all other theories in a class of theories of interest, including itself.
