Question: solve Consider the following type checking rules: G - x : G(x) G - true : bool G - false : bool G F n

solve

Consider the following type checking rules: G - x : G(x) G - true : bool G - false : bool G F n : int Grel : tl G, x : t1 - e2 : t2 G F el : bool G F e2 : bool G - let * = el in e2 : t2 G F el and e2 : bool Grel : t Gre2 :t GF ( t- bool G F el

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