Alright, it’s time to get into gear for your December LSAT Test grind. If you are planning to take the December exam, and you haven’t kicked into study-mode yet, it’s definitely time. So, to all you December LSAT prep studiers, let’s get to it!
Let’s talk quantity statements. I thought today, to hone our Logical Reasoning minds, we could go over combining ALL statements and SOME statements. Remember, you want to align the right hand side variable of the quantity statement to be the same as the sufficient condition of the sufficient/necessary statement. Let’s take for example:
“All chocolate chip cookies have a leavening agent. Some chocolate chip cookies don’t have gluten. All cakes have at least two ingredients. Some muffins have gluten.”
Let’s write it out:
All chocolate chip cookies have a leavening agent.
CC - LA
If it doesn’t have a leavening agent it is not a chocolate chip cookie.
LA ? CC
Some chocolate chip cookies don’t have gluten.
Remember, SOME statements don’t have contrapositives but, if you want, you could flip it without negating and it’d still be true. Some things that don’t have gluten are chocolate chip cookies.
All cakes have at least two ingredients.
C - 2I
All things that don’t have at least two ingredients are not cakes.
2I ? C
Some muffins have gluten.
Some things that have gluten are muffins.
The only two sentences that can align are, “Some things that don’t have gluten are chocolate chip cookies,” and “All chocolate chip cookies have a leavening agent.”
G-some-CC - LA
We can, therefore, conclude: Some things that don’t have gluten have leavening agents.
Easy, right? It’s really simple. All you have to do is align. If the statements don’t align, then you can’t logically conclude something.
Hope that was helpful. To all you December LSAT studiers, it’s definitely time to start your study grind if you haven’t. Check back with the blog every week to get weekly tips, advice, and distractions!