Context
A closure operator records which literals and conflicts are forced, but not the clauses that justify each propagated literal.
Hypotheses and scope
- Conflict-analysis work is measured in the deterministic reason-sensitive interface of CRD-SAT-13b.
Proof or evidence
CRD-SAT-13a proves that and have identical semantics and every UP closure. CRD-SAT-13b gives exact costs and one. The gap grows with , so no function of semantics plus the closure operator alone can recover this resource.
Verification notes
The failed implication and the narrower surviving statement were kept separate. Enriching the state with available reasons distinguishes the databases and is not ruled out.
Limitations
- The refutation is relative to a declared provenance-sensitive observer.
- It does not say that every solver or proof system distinguishes the pair.