Do all languages with pre-positional articles have zero-articles if they don't have post-positional articles?
To clarify, pre-positional articles are the articles positioned before a noun they refer to, like English the or a(n). Post-positional articles are those positioned after a noun they refer to, like ...
Some background info. These two symbols don't have a reading on their own, but rather affect the sound that appears right before them. In modern Russian they are: ъ, which is the hard sign. ь, which ...