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| type | title | author | url | date | domain | secondary_domains | format | status | priority | tags | |||||
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| source | A Full Formal Representation of Arrow's Impossibility Theorem | Kazuya Yamamoto | https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0343069 | 2026-02-01 | ai-alignment |
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paper | unprocessed | medium |
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Content
Constructs a full formal representation of Arrow's impossibility theorem using proof calculus in formal logic. Published in PLOS One, February 2026.
Key contribution: meticulous derivation revealing the global structure of the social welfare function central to the theorem. Complements existing proofs (computer-aided proofs from AAAI 2008, simplified proofs via Condorcet's paradox) with a full logical representation.
Agent Notes
Why this matters: Machine-checkable proof of Arrow's theorem. If we claim Arrow's theorem constrains alignment, having a formally verified version strengthens the claim from "mathematical argument" to "machine-verified result." What surprised me: The timing — published Feb 2026, just as the AI alignment field is grappling with Arrow's implications. The formal proof tradition is catching up to the applied work. What I expected but didn't find: No connection to AI alignment in the paper itself. The formal proof is pure social choice theory. KB connections: Strengthens the foundation under universal alignment is mathematically impossible because Arrows impossibility theorem applies to aggregating diverse human preferences into a single coherent objective. Extraction hints: May not warrant its own claim — but enriches the existing Arrow's claim with the note that the theorem now has a full formal representation (2026). Context: PLOS One — open-access, peer-reviewed. Formal verification trend in mathematics.
Curator Notes (structured handoff for extractor)
PRIMARY CONNECTION: universal alignment is mathematically impossible because Arrows impossibility theorem applies to aggregating diverse human preferences into a single coherent objective WHY ARCHIVED: Provides formal verification foundation for our Arrow's impossibility claim EXTRACTION HINT: Likely enrichment to existing claim rather than standalone — add as evidence that Arrow's theorem is now formally machine-verifiable