Conditional Statements in Logic Games

[ckuchel]

I am having a hard time interpreting different conditional statements in logic games. How should I treat/interpret the rules below?

"For line 3, either the January tickets or the February tickets, but not both, are green." (Game #2 L4 HW, 4-44)
Does this mean that green can be in line 2 for example?


"R is not scheduled for Thursday unless L is scheduled for Monday" (Game #12, L3 HW, 3-58)


Thanks!

[Dave Killoran]

Hi C,

Thanks for the question! A few thoughts that might help:


1. We talk about conditional reasoning here and on our blog very frequently, and so there are a ton of places you can go to learn more about diagramming. It's also a topic you'll see in both LR and LG a lot, so it's good that you are asking questions now about it! Here's some articles/threads to review when you have time:

• Avoid Real World Interpretations and Follow the Language: http://forum.powerscore.com/lsat/viewto ... p=216#p216
  
  One More Look on what Sufficient and Necessary Means (this is key so that when indicators aren't present, we know what we're doing): http://forum.powerscore.com/lsat/viewto ... 6166#p6166
  
  LSAT Conditional Reasoning: When To Diagram: http://blog.powerscore.com/lsat/bid/333 ... To-Diagram
  
  The PowerScore LSAT Blog, Conditional Reasoning articles - https://blog.powerscore.com/lsat/catego ... reasoning/. We write often about this concept, and there are over 20 articles here discussions all sorts of interesting conditional language and arrow relationships.
  
  My posts on this Forum, all searchable: lsat/search.php?author_id=63&sr=posts

2. "For line 3, either the January tickets or the February tickets, but not both, are green." — On page 4-111 it shows that we've made the diagram directly inside our setup, by shows a G/ alternate on Line 3. Technically, one and exactly one of those two months will be G for Line 3. Since Line 3 is next to Line 2, the two interact, but it's still possible for Line 2 February to be G, but that would then mean Line 3 February could not be G. For example, look at the setup to question #20 on page 4-112: it shows Line 2 as being G.



3. "R is not scheduled for Thursday unless L is scheduled for Monday" — You should use the Unless Equation here (page 2-13), which produces a diagram of RThursday LMonday. More on handling Unless here:

https://blog.powerscore.com/lsat/bid-28 ... -equation/

lsat/viewtopic.php?t=13220



4. Last, there's a specific section of the forum for each course, and in this case yours can be found at lsat/viewforum.php?f=25. Each lesson and homework has it's own area where you can ask question specifically about course material (and as you might expect, many questions have been answered already)

Please let me know if that helps. thanks!