Kripke Soundness in τ
Modal operators (necessity/possibility) sound with respect to Kripke semantics realized as quantification over accessible internal worlds.
What this page is
This is a public Results-lane surface for a noteworthy Metaphysics Registry item. It is generated from the Corpus Registry triage catalogue and keeps the generic Result catalogue unchanged.
Registry evidence
- Registry item: VII.T28
- Type: theorem
- Scope: tau-effective
- Lean status: formalized
- Book / part / chapter: Book VII · Part 6 · Chapter 73
Result summary
Modal operators (necessity/possibility) sound with respect to Kripke semantics realized as quantification over accessible internal worlds.
Related Results surfaces
- Modal Logic S4 as Theorem: τ-Modal Operators and Kripke Soundness
- Modal Logic S4 as Theorem: τ-Modal Operators and Kripke Soundness
Reading role
Use as Registry evidence for an existing Results surface.
Claim boundary
This page reports a Registry-backed internal result surface. It is not an external validation claim, a scientific consensus claim, or independent acceptance.
Curation rationale
- metaphysics-facing terms: modal
- candidate is better handled as evidence for an inferred existing public surface
Review notes
- No additional review notes recorded.