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Library / First Principles Framework (FPF) - Core Conceptual Specification
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F.13:15.2 - Regression (RSCR)

  • RSCR-F13-E01 (Edition drift audit). Compare affected earlier/later definitions and naming uses. Stable meaning can support a rename with distinct expression-bearing cells; changed meaning requires the subject-governed revision, replacement, split, merge or retirement before fresh naming settlement.
  • RSCR‑F13‑E02 (Alias creep check). Periodically ensure alias budgets remain within ≤ 1 per register; surplus aliases are pruned.
  • RSCR-F13-E03 (Bridge leak check). A claimed correspondence between different semantic projections is tested under F.9 only when a current use needs it. Retain exact meanings and an honest unresolved result when obtaining is unestablished; do not create a Bridge by rewriting a note.
  • RSCR‑F13‑E04 (Didactic continuity). Sampling of examples shows that readers can resolve legacy labels to current ones without confusion (via the continuity notes).