if c✝ then do
  t✝
else e✝
if c✝ then do
  t✝;
  t✝
else e✝
if c✝ then do
  t✝
else do
  e✝
if let x✝ := c✝ then do
  t✝
else do
  e✝
if c✝ then do
  t✝
else
  if c✝ then do
    t✝
  else do
    e✝
do
  if c✝ then 
    t✝
  else
    e✝
do
  if c✝ then 
    t✝
  else if c✝ then
    t✝
  else
    e✝
def foo✝ := by
  · skip; skip
  · skip; skip
    skip
    (skip; skip)
    ( skip; skip
      try skip; skip
      try
        skip
        skip
      skip)
by
  try
    skip
    skip
by try
      skip
      skip
by try  skip
        skip
by  try skip
        skip
    skip
{ foo✝ := bar✝
  bar✝ := foo✝ + bar✝ }
let x✝ :=
  { foo✝ := bar✝
    bar✝ := foo✝ + bar✝ }
x✝
def foo✝ : a✝ b✝ c✝ d✝ e✝ f✝ g✝ a✝ b✝ c✝ d✝ e✝ f✝ g✝ h✝
    where
  h✝ := 42
  i✝ := 42
  j✝ := 42
  k✝ := 42
calc
  1 = 1 := rfl✝
  1 = 1 := rfl✝
by rw [] at h✝