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Library / First Principles Framework (FPF) - Core Conceptual Specification
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Source changed 2026-10-03 17:24:51 UTC · snapshot created 2026-10-03 17:30:20 UTC · last check 2026-10-03 19:05:20 UTC

A.2.6:11.4 - Serial intersection (API + dataset compatibility)

  • Claim A (API Standard): v2.3 request schema with constraint “idempotent under retry”.
  • Claim B (Dataset cohort): “metrics valid for cohort K with schema ds‑14”.
  • Composition: service S depends on both A and B → serial intersection of Claim scopes: {api=v2.3} ∩ {cohort=K, schema=ds‑14}.
  • Target slice: {api=v2.3, cohort=K, schema=ds‑14} → membership true.
  • Target drift (e.g., ds‑15). The changed target slice lies outside the intersection ⇒ path inapplicable for that slice.