Hybrid Modal-Paraconsistent Semantics: World-Indexed Logic and Structure Emergence

Abstract

This work introduces the first formal system that proves the necessity of a paraconsistent root world for generating maximally inconsistent classical structures within an S4 modal frame. Includes categorical formulation and emergence results. *We introduce a hybrid modal framework in which the logical system itself varies by world. A distinguished root world w0w_0w0 is evaluated using paraconsistent Logic of Paradox (LP), while all other reachable worlds use classical first-order logic. We prove that this heterogeneous architecture is mathematically necessary: paraconsistent evaluation at w0w_0w0 provides the only consistent mechanism for mediating between mutually inconsistent classical worlds. A purely classical root cannot generate branches containing incompatible theories, whereas glutty valuations at w0w_0w0 uniquely allow such mediation. *Within this framework we define a canonical object A\mathcal{A}A at the paraconsistent root, characterized by negative information and glutty self-identity. We show that all classical structures arise as end-extensions via S4 modal accessibility from w0w_0w0. A categorical formulation using indexed topoi demonstrates how coherence-inducing functors resolve paraconsistent indeterminacy into classical determination. This yields the first unified mathematical model in which classical worlds, inconsistent theories, and category-theoretic “spaces” all emerge from a single paraconsistent origin.

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2026-06-30

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