Status: OUT
The GoF pattern ecosystem rests on a complete enabling stack with two complementary layers: SOLID provides theoretical enablement (LSP validates substitutability → DIP enables abstraction dependence → OCP enables extension), while the dual prerequisites provide mechanical enablement (interface inheritance for polymorphic dispatch, creational patterns for composition-based instantiation) — theory without mechanism is inert, mechanism without theory is unjustified, and the GoF's achievement is providing both in a mutually dependent stack.
depth-4 duality insight identifying the theory/mechanism layering in how the pattern ecosystem is enabled
Depends on (SL): dual-prerequisites-enable-pattern-ecosystem, solid-enables-gof-ecosystem