URI
Notation
:
Caption
Simple relation (colon sign). Table 1b
Scope Note
The relation sign : (colon) indicates relationship between two or more subjects by connecting their UDC numbers. Unlike the plus and stroke (Table 1a), the colon restricts rather than extends the subjects it connects
Application Note
When the colon is used to link auxiliary numbers with biterminal signs (i.e. parentheses or quotation marks), the resultant compound number is enclosed within a single set of signs, e.g. (44:450). If required, the type of relationship between two concepts, such as bias phase, comparison, influence etc. may be further specified using common auxiliaries of phase relations -042 (Table 1k)
Examples
17:7 Ethics in relation to art
37-042.4:004 Use of computers in education
37-042.3:32 Influence of politics on education
Broader class
--  COMMON AUXILIARY SIGNS