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abstraction > hypothesis > theory

theory
subject			fact

theory	has validity correct or incorrect with caveats
	has author or reasearch group
	has domain a field of research
	has date or a range of dates for which the theory was active
	has definition A rationally coherent account of a wider range of phenomena than is customarily accounted for by a hypothesis.
	is a kind of hypothesis

Kinds of theory :

• astronomy theory (36 kinds, 121 facts)
• law (45 kinds, 132 facts) - A theory of such wide and invariable application that its violation is thought to be impossible.
• physics theory (11 kinds, 51 facts)
• toy theory (2 facts) - A theory which is known to be too simple to describe reality, but which is nonetheless useful for theorists to study because it incorporates some important features of reality. For example, most of what is known about magnetic monopoles in grand unified theories was discovered first in a toy theory that includes only three Higgs fields, while the simplest realistic grand unified theory includes twenty-four of them.
• unified theory (25 kinds, 85 facts) - In particle physics, any theory exposing relationships between seemingly disparate classes of particles. More generally, a theory that gathers a wide range of fundamentally different phenomena under a single precept, as in Maxwell's discovery that light and magnetism are aspects of a single, electromagnetic force., Any theory that describes all four forces and all of matter within a single, all-encompassing framework.