What is a belief system?

[Eko]

20. Sigh.

The elements (concepts, propositions, rules, etc.) of a belief system are not
consensual. That is, the elements of one system might be quite different from
those of a second in the same content domain. And a third system different from
both. Individual differences of this kind do not generally characterize ordinary
knowledge systems, except insofar as one might want to represent differences in
capability or complexity

Belief systems are in part concerned with the existence or nonexistence of
certain conceptual entities. God, motherland, witches, and assassination
conspiracies are examples of such entities. This feature of belief systems is
essentially a special case of the nonconsensuality feature.

9) Belief systems often include representations of alternative worlds, typically the
world as it is and the world as it should be. Revolutionary or Utopian belief
systems especially have this character. The world must be changed in order to
achieve an idealized state, and discussions of such change must elaborate how
present reality operates deficiently, and what political, economic, social (etc.)
factors must be manipulated in order to eliminate the deficiencies.

11) Belief systems are likely to include a substantial amount of episodic material
from either personal experience or (for cultural belief systems) from folklore or
(for political doctrines) from propaganda.

13) Beliefs can be held with varying degrees of certitude. The believer can be
passionately committed to a point of view, or at the other extreme could regard
a state of affairs as more probable than not. This dimension of variation is
absent from knowledge systems. One would not say that one knew a fact
strongly. There exist some examples of attempts to model variable credences or
"'confidence weights" of beliefs and how these change as a function of new
information. A distinction should be made between the certitude attaching to a
single belief and the strength of attachment to a large system of beliefs.

2. ELEMENTS OF BELIEF SYSTEMS
1) Values. Implicitly or explicitly, belief systems define what is good or valuable.
Ideal values tend to be abstract summaries of the behavioral attributes which
social system rewards, formulated after the fact.

2) Substantive beliefs (Sb). They are the more important and basic beliefs of a
belief system. Statements such as: all the power for the people, God exists,
Black is Beautiful, and so on, comprise the actual content of the belief systems
and may take almost any form. For the believers, substantive beliefs are the
focus of interest.

3) Orientation. The believer may assume the existence of a framework of
assumptions around his thought, it may not actually exist. The orientation he
shares with other believers may be illusory. For example, consider almost any
politic and sociologic belief system. Such system evolves highly detailed and
highly systematic doctrines long after they come into existence and that they
came into existence of rather specific substantive beliefs. Believers interact,
share specific consensuses, and give themselves a specific name: Marxism,
socialism, Nazism, etc. Then, professionals of this belief system work out an
orientation, logic, sets of criteria of validity, and so forth.

I could keep going, but did you see anywhere in there, which was very detailed and concise, that they include science?