cases xs
α : Type u
r : α → α → Prop
β : α → Type v
s : (a : α) → β a → β a → Prop
xs : KVChain r β
hcontra : KVChain.rklex s xs KVChain.nil
⊢ False
case mk
α : Type u
r : α → α → Prop
β : α → Type v
s : (a : α) → β a → β a → Prop
toList✝ : List (Sigma β)
ascend✝ : List.Ascending (Sigma.relOnFst r) toList✝
hcontra : KVChain.rklex s { toList := toList✝, ascend := ascend✝ } KVChain.nil
⊢ False