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inductive definition def or abbrev high

ExistenceMode

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The inductive enumeration defines five modes of existence as physical, biological, conscious, mathematical, and ethical. Foundational researchers in Recognition Science cite this to anchor the claim that existence equals the J-cost zero condition across domains. The definition is a direct inductive construction that derives Fintype, enabling immediate cardinality computation via the decide tactic.

claimLet $E$ be the set of existence modes. Then $E$ consists of the five elements physical, biological, conscious, mathematical, ethical and carries decidable equality together with finite type structure.

background

The module develops the pre-Big-Bang claim that existence itself equals the cost-zero condition under the J-function. Specifically, J(1) = 0 marks the unique state of existence while J(x) > 0 for x ≠ 1 and J(x) → ∞ as x → 0. The five modes listed here correspond to configuration dimension D = 5 in this setting.

proof idea

Direct inductive definition of the five constructors followed by automatic derivation of DecidableEq, Repr, BEq, and Fintype instances. No lemmas are applied; the Fintype derivation supplies the cardinality fact used downstream.

why it matters in Recognition Science

This supplies the five-mode enumeration required by the ExistenceCert structure, which pairs Fintype.card = 5 with the statements Jcost 1 = 0 and positivity of Jcost for x ≠ 1. It implements the configDim D = 5 asserted in the module doc-comment and feeds the explicit cardinality theorem existenceModeCount. The definition therefore grounds the extension of the J-cost framework to multiple domains while remaining within the T0-T8 forcing chain.

scope and limits

formal statement (Lean)

  25inductive ExistenceMode where
  26  | physical | biological | conscious | mathematical | ethical
  27  deriving DecidableEq, Repr, BEq, Fintype
  28

used by (2)

From the project-wide theorem graph. These declarations reference this one in their body.