Recently S. D. Cohen resolved a conjecture of Chowla and Zassenhaus (1968) in the affirmative by showing that, if f(x) and g(x) are integral polynomials of degree n ≥ 2 and p is a prime exceeding (n2 ...

This is a preview. Log in through your library . Abstract This note explains an error in Restall's 'Simplified Semantics for Relevant Logics (and some of their rivals ...