I found a resource which says the -eba form is a form used to express a conditional without supposition or back thought.
I didn't find any others resources that spoke about the same thing. Is this a mistake in my resource or is it real ?
Is there another conditional form to specifically express something conditional but with a supposition or a back thought ?
I also found this useful post for Differences among -たら、なら、-んだったら、-えば, etc but it doesn't help my case.
Edit : If someone is French, here is the link of JLPT-Go (the ressource which says that)