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3 div 2
  Assumed: x
  Assumed: i
  Assumed: n
x + i + 1 + n
  Set: lean::pp::coercion
x + (int_to_real i) + (nat_to_real 1) + (nat_to_real n)
x * (int_to_real i) + x
x - (int_to_real i) + x - x ≥ (nat_to_real 0)
x < x
x ≤ x
x > x