funext _ _ _ xs
η : Type u_η
dec_η : DecidableEq η
schema : Schema
⊢ @map = @List.map
case h.h.h.h
η : Type u_η
dec_η : DecidableEq η
schema : Schema
x✝² : Type u_2
x✝¹ : Type u_1
x✝ : x✝² → x✝¹
xs : List x✝²
⊢ map x✝ xs = List.map x✝ xs