∀ {lctx : Lean.Compiler.LCNF.LCtx} {nextIdx : ℕ} {lctx_1 : Lean.Compiler.LCNF.LCtx} {nextIdx_1 : ℕ},
  { lctx := lctx, nextIdx := nextIdx } = { lctx := lctx_1, nextIdx := nextIdx_1 } → lctx = lctx_1 ∧ nextIdx = nextIdx_1