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The Semantic Elevation Operator and the Closure of the Undecidable Class under Preservation

arxiv.org/abs/2609.11326

quality89

Updated 5 h ago · first seen 11 Sept 2026

paper_01M294G599SVRCNXE3JWK7S9ZW

Published
11 Sept 2026
T1 · 5 h ago
arXiv
2609.11326
T1 · 5 h ago
Category
cs.LO
T1 · 5 h ago

Abstract

The undecidability of a program's static semantic properties is governed by Rice's theorem. Self-modifying systems, however, require analysing not whether a property holds now, but whether it is preserved when the system rewrites itself. We formalise this transition through a semantic elevation operator {\Lambda}{\Phi}, which turns the static question "does x satisfy P?" into the dynamic question "is P preserved after x is transformed by {\Phi}?". We prove that when {\Phi} is intensional (depending on the source code, not only on the computed function), the elevated property remains undecidable even though it breaks the extensionality that Rice's theorem requires; the proof rests on Kleene's recursion theorem, not on Rice. Consequently the class U of non-verifiable properties is closed under the elevation operator. Unbounded iteration of the operator climbs the arithmetical hierarchy -to {\Pi}02-completeness- consolidating non-verifiability as a structural fact. We further show that the supervisory regress does not terminate: no fnite tower of increasingly capable verifiers yields an unconditional certificate. A categorical reading of these results in the efective topos, in which elevation appears as an instance of Lawvere's fxed-point theorem, is left as a direction for future work.

Authors 1

Jose Pascual Gumbau Mezquita

Specification

Official page

Source:arXiv (Atom API + RSS)T1observed 5 h agohigh

Arxiv announce type
cross

Source:arXiv (Atom API + RSS)T1observed 5 h agohigh

arXiv id
2609.11326

Source:arXiv (Atom API + RSS)T1observed 5 h agohigh

Categories
cs.LO, cs.AI, cs.CL, math.LO

Source:arXiv (Atom API + RSS)T1observed 5 h agohigh

PDF

Source:arXiv (Atom API + RSS)T1observed 5 h agohigh

Primary category
cs.LO

Source:arXiv (Atom API + RSS)T1observed 5 h agohigh

Published
11 Sept 2026

Source:arXiv (Atom API + RSS)T1observed 5 h agohigh

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Provenance

Attributed facts

9

Source tiers

T19

Freshest observation

5 h ago

Conflicts

None