de-johannes/FirstDistinction: FD v118 (1b979a4)

First Distinction 1b979a4 Machine-verified derivation of spacetime structure from pure type theory. Zero-Parameter Predictions | Quantity | Value | Source | |----------|-------|--------| | Spatial dimensions | d = 3 | K₄ Laplacian eigenvalue multiplicity | | Lorentz signature | (−,+,+,+) | Drift irreversibility | | Einstein coupling | κ = 8 | dim × χ = 4 × 2 | | Fine structure | α⁻¹ = 137.036 | Operad arities | | Cosmic age | τ = 13.7 Gyr | N = 5 × 4¹⁰⁰ | Changes since v117 Major improvements: Book ending, loop-mass explanation, WHY-ONLY-TYPE-THEORY refactor (1b979a4) Verify: agda --safe --without-K --no-libraries FirstDistinction.lagda.tex