E.5.1:8 - Rationale
Language shapes thought. By firewalling transient jargon, we uphold P‑1 Cognitive Elegance (clarity), P‑2 Didactic Primacy (domain‑neutral exposition) and P‑5 FPF Layering (clean separation between Core and Tooling). The subject-sensitive boundary keeps abstract concepts portable while allowing a form-specific rule to state the syntax that its reader must use.