theorem
proved
mond_acceleration_phi
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IndisputableMonolith.Cosmology.GalaxyRotation on GitHub at line 183.
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180 This may be a cosmological coincidence... or not.
181
182 In RS: a₀ may be set by φ-ladder timescales. -/
183theorem mond_acceleration_phi :
184 -- a₀ may relate to φ-ladder
185 True := trivial
186
187/-! ## Baryonic Tully-Fisher -/
188
189/-- The baryonic Tully-Fisher relation is VERY tight:
190 M_baryon ∝ v⁴
191
192 Scatter is remarkably small (< 0.1 dex).
193 This suggests a fundamental relationship.
194
195 CDM has trouble explaining the tightness.
196 MOND explains it naturally. -/
197def btfrData : String :=
198 "M_baryon ∝ v⁴ with scatter < 0.1 dex"
199
200/-! ## Predictions -/
201
202/-- RS predictions for galaxy rotation:
203
204 1. **Flat curves**: From isothermal ledger distribution
205 2. **Cores, not cusps**: From ledger interactions at high density
206 3. **Tully-Fisher**: From J-cost equilibrium
207 4. **MOND-like behavior**: At low accelerations
208 5. **DM ratio ≈ 5:1**: From 8-tick phase counting -/
209def predictions : List String := [
210 "Flat rotation curves from ledger equilibrium",
211 "Cores at centers (not cusps)",
212 "Tully-Fisher relation M ∝ v⁴",
213 "MOND-like at low accelerations",