Structural Invariance Under Corpus Expansion: Proclus and Ishraqi Illuminationism Confirm Topology-Family Stability in Emanation Hierarchies

**Purpose.** This study extends the computational graph-theoretic
methodology established in Ceisiwr (2026a) by adding two new
cosmological hierarchies — Proclean Neoplatonism (*Elements of
Theology*, 5th c. CE) and Suhrawardian Illuminationism (*Hikmat
al-Ishraq*, 12th c. CE) — to an existing corpus of nine encoded
emanation schemas. The expansion tests three predictions: (i) that the
two-family topology classification (linear chain vs. branching tree) is
stable under corpus growth; (ii) that cross-cultural structural
isomorphisms are not artefacts of a small sample; and (iii) that
intra-tradition elaboration (Proclus vs. Plotinus) produces greater
structural divergence than cross-cultural convergence between
historically unconnected traditions.