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Outline of the UDC
The following outline is not framed in the actual terms used in the tables of any specific edition of the UDC. It is simply a guide to the arrangement of disciplines and subdisciplines, expressed in the most commonly used terms.
UDC contains over 56 000 Main numbers and over 13
000 Common auxiliaries . See also subject
coverage statistics in the UDC MRF 2004 and UDC
Summary with approximately 400 divisions.
Main numbers
| 0 | GENERALITIES |
| 1 | PHILOSOPHY. PSYCHOLOGY |
| 2 | RELIGION. THEOLOGY |
| 3 | SOCIAL SCIENCES |
| 4 | VACANT |
| 5 | NATURAL SCIENCES |
| 6 | TECHNOLOGY |
| 7 | THE ARTS |
| 8 | LANGUAGE. LINGUISTICS. LITERATURE |
| 9 | GEOGRAPHY. BIOGRAPHY. HISTORY |
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