t1: f (g x) y
loc(t1): at line 1, column 0 - at line 1, column 9
t2: let x := 1 in f (f x 2)
loc(t2): at line 1, column 0 - at line 1, column 22
t3: let l := map f (list 1 2 3) in let l2 := rev l in = (rev l2) l
loc(t3): at line 1, column 1 - at line 1, column 61
t4: let assm := ==> (is_foo p) (= (filter p l) nil) in true
loc(t4): at line 1, column 0 - at line 1, column 51
t5: let
      f := lam (x : int) (y : int) (z : bool). (= (+ x y) z) and 
      g := lam x. (f (f x)) in
    is_g g
loc(t5): at line 1, column 0 - at line 1, column 84