5-0 For someone who believes that the whole perceived world is only an imagined one, a mental picture, and is in fact the effect upon my soul of things unknown to me, the real problem of knowledge is naturally concerned not with the mental pictures present only in the soul but with the things which are independent of us and lie beyond our consciousness.

5-1(Materialism) World Of I-In-Itself

5-2 (Spiritism) Assert Results Of Thinking

5-3 (Realism) World Produces Thinking

5-4 (Idealism) Process Of Becoming

5-5 (Mathematism) Indivisible Existence Of Concept With Percept

5-6 (Rationalism) Isolate Sections Of World For Consideration

5-7 (Psychism) Individual Coloring Of Thinking

5-8 (Pneumatism) In Thinking We Are The All-One Being

5-9 (Monadism) Activities Of Body Are Thing-In-Itself in the Concrete

5-10 (Dynamism) Cooresponding Intuition Of Observed Object

5-11(Phenomenalism) Ideal Connections Of Percepts

5-12 (Sensationalism) Objective Percept Present In Field Of Vision