When the Rishonim wrote, they weighed every word they used, considered the meaning and inferences of all possibilities and decided on what best reflects their position as a whole. This is how we treat their writings. What this allows us to do is to make inferences to other cases that were not spoken about from cases that were spoken about. You could ask question such as "Why did he choose to say it this way and not this way?".
My question is: are there any late-Achronim that we can make inferences (diyukim) off of? or does any late-Acharon claim to have written in such a way?
For the purposes of his question lets call a late Acharon someone writing from mid 1800's at the latest.