Status: OUT
OO design achieves dual invariance: scale-invariant (via SOLID's self-grounding as both theoretical ground and conceptual map) and classification-invariant (via the variation taxonomy transcending Creational-Structural-Behavioral boundaries across the lifecycle), meaning design principles apply uniformly regardless of problem scale or pattern category.
Two independent depth-8 invariance properties (scale, classification) combine into a stronger dual-invariance claim — a genuinely emergent property since neither alone guarantees the other
Depends on (SL): self-grounding-enables-scale-invariant-design, variation-transcends-classification-across-lifecycle