If true, they have witnessed a phenomenon that, according to established theory, should be impossible.
This, however, is only a hypothesis, not an established theory.
According to the established theory upon which the designs had been based, such an eventuality was impossible.
The idea became established theory only decades later with the discovery of cosmic background radiation by American scientists.
In Japan, there were several activities of etiology research groups, but there has been no established theory.
The regression hypothesis can be named as the first established theory in language loss.
A theory is a hypothesis that has survived many tests and seems to be consistent with other established scientific theories.
This often sets the stage for specific discussions with established moral theories, such as consequentialism.
However, during the present project the limitations of the established semantic theories have become apparent.
They will also be closely linked with the final step in the research, which is that of relating the findings to established theory.