From the lessons we learn that "the only" indicator falls into the category of Group 1 to support a sufficient idea, whereas "only" clauses support necessary conditions. This is really confusing to me.. could someone elaborate on the difference by drawing on examples please? (The Jedi->Force example didn't get me any clearer..)
Here is my take:
Only human beings can have souls = Have souls -> Human beings
The only human beings can have souls = Human beings -> Have Souls
I know the lawgical translations are correct mechanistically, but those two sentences sounds more or less identical to me. Thanks for your help!
Could someone explain why E is not a valid weakening point since it addresses the fault of the premises of the argument, which weakens its support to the conclusion that attributes the problems of irrigation to the build-p of soil toxic levels, salts, etc. If the Sumerian soil itself was problematic to begin with, therefore is unlike other regular soils, doesn't it make sense that the problem was specific to only Sumerian agriculture and thus not likely befall on modern civilizations?