import HeytingLean.PadicDecoupling.Bridge.HossenfelderConnection import HeytingLean.MirandaDynamics.Fluids.TuringComplete noncomputable section namespace HeytingLean.PadicDecoupling.Bridge open HeytingLean.PadicDecoupling.Nucleus open HeytingLean.MirandaDynamics variable (p : ℕ) [Fact p.Prime] theorem padic_fixed_iff_within_visible_skeleton (k : ℕ) (S : DepthState p) : S ∈ fixedPointsAtDepth p k ↔ asSet p S ⊆ roundedSkeleton p k := mem_fixedPointsAtDepth_iff (p := p) theorem miranda_fixed_iff_contains_periodic {α : Type*} (periodic : α → Prop) (S : Set α) : Fluids.fluidPeriodicNucleus periodic S = S ↔ {x | periodic x} ⊆ S := Fluids.fluidPeriodicNucleus_fixed_iff periodic S end HeytingLean.PadicDecoupling.Bridge