First, I know that "not all" is partial negation. For example, "not all the numbers are 0" means there may be a number that is nonzero.
And to me, a non-native speaker of English, it seems that "all not" should be used for complete negation. However, I remember distinctly from high-school English lessons that "all not" is also partial negation.
Exactly which is it?
More specifically, suppose I say "all the numbers are not zero", does it mean every single number cannot be zero, or that there may be one or more numbers that are zero?