{motive : Mathlib.Tactic.Abel.Context → Sort u} →
  ((α : Lean.Expr) →
      (univ : Lean.Level) →
        (α0 : Lean.Expr) →
          (isGroup : Bool) →
            (inst : Lean.Expr) → motive { α := α, univ := univ, α0 := α0, isGroup := isGroup, inst := inst }) →
    (t : Mathlib.Tactic.Abel.Context) → motive t