Suppose President Chirac has been advised that his resumption of nuclear testing would precipitate an international boycott of French products.
Can we infer that "President Chirac has  not been advised."? Yes, no, or maybe?
Suppose President Chirac has been advised that his resumption of nuclear testing would precipitate an international boycott of French products. Can we infer that "President Chirac has  not been advised."? Yes, no, or maybe?