by Sage Pearce-Higgins Mon Jan 29, 2018 6:47 pm
The Isles of Greece! The Isles of Greece! Where burning Sappho loved and sung...
Apologies if our guide isn't clear. Be careful what a conclusion is: it's the main claim of the argument, such as an opinion or prediction i.e. something that somebody could disagree with. For example, if I say "The capital of Greece is Athens." then I don't need to provide support for that, because it's a fact. And even if you could have a disagreement about it with an odd person, then it would be a silly argument and GMAT wouldn't do that. However, if I say "I think it will rain tomorrow." then you could ask me for my evidence and we could have a sensible disagreement about it. "I think it will rain tomorrow." is clearly a claim.
However, even if all conclusions are claims, it doesn't follow that all claims are conclusions. I could present an argument like this one: "I saw clouds in the sky so I think it will rain tomorrow; therefore I think we shouldn't plan a trip to Hydra." The main conclusion (the big claim) in this argument is that 'we shouldn't plan a trip to Hydra', but I support this with the claim that 'I think it will rain tomorrow'. Claims can support other claims, particularly in this kind of two-step argument.
I hope this helps.