Status: OUT
Creational patterns form complete object lifecycle infrastructure enabling composition-based reuse: Factory Method governs type selection (which class to instantiate), Singleton governs instance multiplicity (how many exist and how they're accessed), and together they provide the runtime object supply chain that the GoF catalog's composition-based patterns depend on.
Two depth-2 conclusions about creational patterns address complementary lifecycle concerns (type vs. instance) and composition enablement; their combination reveals creational patterns as infrastructure for the entire catalog
Depends on (SL): creational-lifecycle-spectrum, creational-patterns-enable-composition-reuse