1 | 9. x,y:Alph*. (Result(A1)x) = (Result(A1)y)  (Result(A2)x) = (Result(A2)y) 10. A2 A1 11. f: S1 Alph* 12. x:S1. (Result(A1)f(x)) = x 13. s: S1 14. a: Alph 15. A2((Result(A2)f(s)),a) = (Result(A2)a.f(s)) 16. (Result(A1)f(s)) = s (Result(A2)f( A1((Result(A1)f(s)),a))) = (Result(A2)a.f(s)) |