(\lambda f. (f 0 (le_n 0))
\lambda n. \lambda H. (refl_equal nat 0)))
### (* METASENV after disambiguation *)
-_; _ : nat |- ?14: Type
-_; _ : nat |- ?15: ?14[_ ; -1]
+
### (* TERM after disambiguation *)
([f:(nat->((le O O)->(eq nat O O)))](f O (le_n O)) [n:nat][H:(le O O)](refl_equal nat O))
### (* TYPE_OF the disambiguated term *)