case skip e => exact State.Over.forcing_skip_step_rcn_eq e ▸ e.allows_rcn.acyclic
α : Type
inst✝ : Hierarchical α
rtr : α
p : Progress rtr
rcn : Component.idType Component.rcn
hm : rcn ∈ rtr[Component.rcn]
w✝ : State α
e : (State.Over.forcing rtr rcn).toState ↓ₛ w✝
⊢ ¬rcn <[rtr] rcn
no goals