Integrated generic resource: Classification and set theory | ISO 10303-54:2005(E) © ISO |
number of things considered together
NOTE 1 A set that is defined by enumerating its members is a 'class by intension'.
NOTE 2 A set that is defined by means of criteria that do not enumerate the members is a 'class by extension'.
For the purposes of this document, the following abbreviations apply:
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