| import OAI.Analysis.GroupDeterminants.CompanionTransfer | |
| import OAI.RingTheory.DirectFiniteness.Main | |
| namespace OAI | |
| namespace GroupRingDeterminant | |
| theorem companion_input : CompanionInput := by | |
| obtain ⟨K, hK, hKfin, hKchar, H, hH, hHfg, a, b, hab, hba⟩ := | |
| KaplanskyCounterexample.main_theorem | |
| exact ⟨K, hK, Fintype.finite hKfin, hKchar, H, hH, hHfg, a, b, hab, hba⟩ | |
| theorem main : MainStatement := main_of_companion_input companion_input | |
| end GroupRingDeterminant | |
| end OAI | |