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Conditional Logic, valid & invalid argumentsEven though conditional logic seemed easy when I went through the CC, it continues to trip me up on harder questions, so I'm reviewing some basics: …
... ;B, A, therefore B ) ; **denying the necessary** (A->B, /B, therefore /A); **transitive property** (A->B->C ... (A->B some C, therefore A some C OR A->B most C, therefore A most C).
The power of the Floater in Logic Games When I first started logic games, making inferences looked like some sort of voo doo that I would never quite get. I brute forced games that sho…
... go into Group C?
**You have a hypothetical question ... have 3 groups A, B, C Each Group can have a maximum of ... your floater into Group A, and Group A is now full ...
**You have a hypothetical question involving a large block or variables ...PT33.S1.Q19-- historian: the spread of literacyThis was a weird question because while A,B,C, and E all looked wrong, D looked ok but I just couldn't quite 100% understand why D was right. How we…
This was a weird question because while A,B,C, and E all looked wrong ...Problem Set Review Results AnalyticsHi all, I need some clarification on how to interpret the Review Results Analytics after problem sets are completed. After completing a problem se…
... hovering over the “Answer Choices” (A, B, C, D, E) what do the ... choice represent? They look like a range of LSAT scores. Do ...SPOILER ALERT: Summer 2020 Update to 7sage's "Hardest and Most Difficult LSAT Sections..."Hi all. I've finally finished my LSAT studying journey, so first of all: **THANK YOU 7sage, and THANK YOU Mike Kim!!** I'm very grateful to those two…
... studying was this post from a few years ago, which lists ... tried to put weird tests (A, B, C, C2, F97, and J07) where ... GAMES:**
5-star: 27, B, C, 34, 88
4-star ... : 5, 18, A, 30, 31, 35, 62
Conditional linkageIf I have a statement: A ---> C and a second statement: B ---->C is it fair to say A + B ----> C?
If I have a statement: A ---> C
and a second statement: B ---->C
is it fair to say A + B ----> C?PT14.S4. Q9- Anyone who supports the new tax planI have been reading through some of the previous posts regarding this question, and they have really helped me understand the stimulus and why it is …
... : UE----> /S
C: E-----> UE
Valid Argument #3- A--> B--->C
If we ... , the author's flaw was a mistaken reversal error (in premise ... manner. It has really been a struggle for me to get ...Inferences for Always, Most, SomeQuestion 1: For premise: A --> B Are all of the following valid inferences? A -m-> B A -s- B -B --> -A -B -m-> -A -B -s- -A Quest…
... :
For premise: A --> B --> C
Is the ... /> A --> -C
Question 3:
From premise A --> B ... --> C is there any inference ...Valid or Mundane?In this example: True Premise: A --> B True Premise: B --> C Inference: A--> B --> C Is the inference a valid conclusion? Or is it ju…
... A --> B
True Premise: B --> C
Inference: A--> B --> C ...
Is the inference a ... just like a mundane re statement ... /> A --> C would of course be a valid ...Why is everything translated into conditionals?Hello Everybody, I am currently working my way through the Logic Games section. I've taken multiple symbolic logic courses in University and learn…
... translates to either (~A & ~B ) or into ~(A v B ), according to the ... , 7Sage suggests the translation: A -> ~B C -> ~B
Can someone explain ...Diagramming Quantified Logic (Combining "All" and"Most" Statements)When combining an "all" statement that shares its sufficient condition with the necessary condition of a "most" statement, how do you determine the s…
... /> For instance, if:
A --> B
C (most) -- A
Would ... the accurate conclusion be C (most) -- B ... , or B (most) -- C?In/Out Game with Multiple Necessary Conditions on Tail of Chain<p>Consider this chain:</p> <p>A —> B—> /C or /D</p> <p>I understand Demorgan's Law Regarding Contrapositives. But how do we work with the 'possibl…
Consider this chain:
A —> B—> /C or /D
I ... If B, then "C not D, or D not C, or Not C not ... require triggering the negation of B?
If I'm ... B?
In my mind, negating B requires BOTH Not C ... on, if I have B? In out questions require ...PTA.S4.Q20 - all orchid species that are pollinatedI don't understand why the answer is D. I know why the answer is not A, B, C, or E. But D doesn't make sense to me. What is the exact characteristic …
... why the answer is not A, B, C, or E. But D doesn ...Chaining conditionals and contrapositives (specifically rule 6)Suppose we had a rule 6 situation where B goes to A and C goes to A, but B also goes to D and E goes to C. What happens if there are other pieces in …
... a rule 6 situation where B goes to A and C goes to A, but B ... also goes to D and E goes to C ... of the rule 6 group (A, B, C)? Do you also take the ...Complete and Accurate list: What is it asking for?I need clarify on what the complete and accurate list question is really asking for. Should I consider all solutions across the entire game, for …
... LSAC want all possibilities within a "world" for the game, ex ... you group entities into groups a, b, c. Within a specific solution only 3 ...BiconditionalsPerhaps I missed something as I do not remember a lesson on biconditionals (double arrows). My understanding is that each term is both sufficient…
... /> 2. Always apart, never together (A/B).
The knowledge of ... A, then B (A->B)
2. B only if C (B->C)
3. If C ... : A->B->CD.
Suppose a question asks you; if C ...LG help please somebody!I feel kind of hopeless on LG. I've improved since I've been studying, but I figured after a few months I'd have them down, but its not the case. I s…
... testing 5 of 7 medicines A B C D E F G, are ... . It took me more than a few months to get it ...Help needed! Any tips on maximum/minimum number-type in/out game questions?Hey LSAT Geeks~My test in 10 days and one of my lingering concerns is about the type of in/out game questions that asks "what's the maximum/minimum n…
... say you have 6 variables: A B C D E F
/A -> B -> C ->/E
B and C in as well, which ... , you have E and A in, B and C out, and you don ... you have F in, B is out and A is in. You ...Diagramming problemNo A is B until C are both D and E. Since there're two conditional expressions ("No~is~" and "~until~") in one sentence, I'm confused how it makes…
I'll give this a try
No a is b = a-->\b
C are both d and e = c-->d & e
So, a-->\b "until" c--> d & e = [a-->b] --> [c-->d & e]Diagramming problemNo A is B until C are both D and E. Since there're two conditional expressions ("No~is~" and "~until~") in one sentence, I'm confused how it makes…
Thank you so much!
Sorry but I have one more question.
You said [a-->b] --> [c-->d & e], so what is contrapositive?Diagramming problemNo A is B until C are both D and E. Since there're two conditional expressions ("No~is~" and "~until~") in one sentence, I'm confused how it makes…
... two concepts are "No A is B" and "C is both D and ... words, the conditional statements (A -> /B) and (C -> D and E ... up looking like this: /(A->/B) -> (C -> D and E ... a B, then Cs are always Ds and Es.
Contrapositive: /(C ...PT14.S4.Q09 - anyone who supports the new tax planHi! I am having difficulty with predicting descriptive flaw questions. If anyone has done this question can you please explain to me how the correct …
... (meaning, they interpreted A->B as B->A). So where is it ... inferable. Its essentially A->B->C, therefore A->C)
But ... logic, has ASSUMED that A-> B implies B-> A, we merely need ...PT14.S4.Q09 - anyone who supports the new tax planHi! I am having difficulty with predicting descriptive flaw questions. If anyone has done this question can you please explain to me how the correct …
... />
A->~B
A->~C
________
conclusion: ~C -> ~ B
C->~B, since if ~C -> A and A->~B, then ~C->~B.
A->B.>C , therefore A-> C? If it's ...Getting mixed up with failing the sufficient and the necessary.Hey everyone, if someone could give me a quick explanation on failing either the sufficient or necessary I would greatly appreciate it. In LSAT Pre…
... , if C is out, then we know B is out and A is ... for A ---> B, but failing the sufficient condition for B---> C. What ... does this mean? Well, it means A and B ... are out, and C is a floater.
Where is the lesson on negating embedded conditional statements?I just need some clarification now how NOT (A--->B) turns into A and /B.
In (A--->B) ---> C. Couldn't the contrapositive just be
/C---> A--->/B. I am not getting how it gets to /C---> A and /B.Where is the lesson on negating embedded conditional statements?I just need some clarification now how NOT (A--->B) turns into A and /B.
... :
B->/C.
(A--->B) ---> C means that if ... the conditional relationship of A->B ... is true, than C occurs. If C fails to ...Logic Game Set UpI downloaded the Logic Game Cheat Sheet, but what about some language/word indicators of which kind of game it is. Hints, ideas? Appreciate it.
... /> A→ (B→C)
/A or (B→C)
/A or (/B or /C)
(/A or /B) or C
NOT [/A ... or /B] →C ...Order of Choices for hard LG QuestionsHi All I'm wondering if it's best to start with later answer choices on some of the harder LG questions (rule suspension, 5 IF). Obviously these …
... I would say every answer A,B,C,D,E has its 20 ... the correct answer choice as A or B. I wouldn't go ...a unless b but only if c.For instance, a -> (b -> c) simplifies to a + -b -> -c. What about (-a -> b) -> c. How can I simplify it?
... approach.
(-a->b)->c
because you ... have a conditional within a conditional. ...
so -a->b is its only conditional, but ... it as well, so (-a->b) servers as the entire ...a unless b but only if c.For instance, a -> (b -> c) simplifies to a + -b -> -c. What about (-a -> b) -> c. How can I simplify it?
To simplify: (-a -> b) -> c, think of the expression (-a -> b) as y. That is, y=(-a -> b). Then, we get
y -> c,
or, -c -> -y (taking contrapositive)
or, -c -> (-a -> b)
or, -c AND -a -> b
