Reaction networks: effective equations and separate finite evidence

Selected reading distinguishes the older initial-state-dependent all-time bounds from the newer classwise eventual absorber. The formal scope covers only the older claim. The new construction orders tolerance, finite slopes, separation and class scale, with compactness-based choices; no practical numeric absorber or entry-time bound was extracted. Full source proof and kernel acceptance remain open.

Detailed review adds 713 passing controls, effective-graph/rate-convention checks, exact supplied conservation and invariant-rectangle evidence, and conventional NetworkX/SymPy/SciPy comparisons. SBML/Catalyst import is unimplemented and physical fidelity is not established. The qualitative theorem does not replace finite numerical evidence.

Opportunity 013 v2 is a low-confidence specialist integration. Facility planning remains first. Source revision fd4aeeb2ee4fc729c18d98444fed42fd0529eeeb; four PDF pages inspected, precise selected extents recorded.