IfcSingleProjectInstance

Natural language names
Single Project Instance
Semantic definitions at the global rule
Global Rule Definition

The global rule verifies that only a single (as maximum) instance of IfcProject exists.

Formal representations
EXPRESS Specification

RULE IfcSingleProjectInstance FOR ( IfcProject );
    WHERE
     WR1 : SIZEOF(IfcProject) <= 1
END_RULE;

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