This paper addresses a foundational question in the philosophy ofmathematics: what is the minimal ontological primitive from which thefull machinery of set theory can be derived? We construct aZFC-equivalent mathematical ontology grounded in a single primitivebinary relation (x ← y) — a directed edge in a graph — and demonstratethat every axiom schema of Zermelo–Fraenkel set theory with Choice (ZFC) is recoverable as a theorem about the algebraic structurehosting this ontology, rather than posited independently. Thestructural-sketch proofs for all schemata are collected in theappendix. The mathematical structure hosting this ontology is the Moonshinemodule V♮, the unique infinite-dimensional vertex operator algebraof central charge c = 24 with V₁ = 0, whose symmetry group is theMonster group M — the largest sporadic finite simple group. V♮ isconstructed over the 24-dimensional Leech lattice Λ₂4, the densestknown sphere packing in 24 dimensions, embedded in a 26-dimensionalconformal field theory. The framework — called Monolit (M) — rests on five independentaxioms (A0–A4) and three auxiliary statements (P0–P2). The centralaxiom (A1) combines ontological monism with a discreteness corner-stone: every constituent of M has the structure of a free Z-module, a finite set, or a graded Z-module with finite-rank components; nocontinuous, real-valued, or topologically dense structure is admittedwithin M. Two corollaries unpack A1: observer internality (humans arenodes in M, no view-from-nowhere) and empirical observer placement (the human consensus layer corresponds to the symmetric section atcompression parameter n = 4). Key results include: (1) the recovery of every ZFC axiom schema —including Foundation, Infinity, Replacement, and Choice — as atheorem about V♮, with explicit witnesses in the algebraicconstruction; (2) Foundation follows constructively from the L₀grading of V♮, distinguishing this framework from Aczel's non-well-founded set theory; (3) the Monster group's action provides afinite upper bound on state transitions from any given node, partitioning the relational graph into finite local orbits. Structural-philosophical positioning relative to Shapiro, Burgess, Resnik, Hellman, and Tegmark is treated in a dedicated section. Adisjointness lemma scopes the framework's derivational reach, distinguishing substrate-intrinsic content from projection-dependentobserver reports; falsifiability conditions are specified explicitly. The framework explicitly rejects any empirical interpretation ofbosonic string theory; the 26-dimensional domain is used exclusivelyas a mathematically rigorous target space. The projective dynamics, observer mechanics, and connection to phenomenological descriptionsare developed in companion work, in a form compatible with thediscreteness commitment of A1. This work was conducted independently, without institutionalaffiliation or funding.
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