All men are not wise = no man is wise, and should be not all men are wise . However, the original construction is used [incorrectly] so often that it is widely understood.
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moon7296All men are not wise.Again you have a universal quantifier and a negation.
moon7296'All men are not wise' can have two translations but to avoid ambiguity, it's better to say:Yes. Exactly.
1 All men are unwise.
2 Not all men are wise. (like you mentioned, isn't it?)