Abstract

By constructing a counter, model we show that a certain appealing
equation E has no solution in Girard's [1972] second order lambdacalculus
(the so-called polymorphic, lambda calculus). The equation E = Eφ (with φ a type 3 variable) is a simple functional equation in thelkiguage
of Gödel's [1958] system of higher order primitive
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