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LSAT Prep
LSAT Prep Plus 2022 Kaplan
Question | Answer |
---|---|
Are there different levels of truth? | Yes |
If a statement does not qualify as "must be true," | then it is either false or possible. |
If a statement does not qualify as "must be false," | then it is either true or possible. |
If a statement does not qualify as "could be true," | then it must be false. |
If a statement does not qualify as "could be false," | then it must be true. |
If it is "sufficient" it is | "enough" (trigger - precipitates the occurrence or truth of something else, logically speaking) |
If it is "necessary" it is | "required" (result - logical consequences of the "trigger" in the sufficient term) |
Sufficient statement | it is enough - to require the other part |
Necessary statement | it's required whenever the sufficient term is present |
Sufficient | Being in New York is enough to know that you are in the United States |
Necessary | Being in the United States is required whenever you're in New York |
Is this correct? If you're under the age of 21 (trigger), you cannot legally drink (result) | Yes |
Is this a conditional statement? Make it so. | No, it's a declarative statement. It is a command. |
Is this a conditional statement? Some wildcats are striped? | No. It is not necessary for a wildcat to be striped because only some of them are. |
Is this a conditional statement? Everything on the menu is vegan-friendly. | Yes, if it's on the menu it is necessary for it to be vegan friendly. Knowing that an item appears on this menu is sufficient to tell you that it's vegan-friendly. "Vegan-friendly" is a status required of any item on the menu. |
Is this a conditional statement? The car need an oil change before your trip. | Yes. Beating the Eagles is a necessary if this car goes on a trip. If you're driving this car on your trip, that's enough to guarantee that this car had an oil change. |
What does And mean? | You need both terms for the conditional to be relevant or fulfilled. |
What does Or mean? | You need at least one of the terms (the first or the second or both) for the conditional to be relevant or fulfilled. It does not express a mutually exclusive relationships unless you're explicitly told otherwise. |
If X and Y, then Z. | X and Y must be true to apply the conditional statement. X by itself doesn't ensure that Z will happen; neither does Y by itself. The conditional statement simply isn't relevant unless we have both X and Y. |
If A, then B and C. | We have A, we have to have both B and C. When we have A, it's just not possible that we could have B without C, or C without B. Given A, the statement can't fulfilled without both B and C. |
If G or H, then J. | Either G or H by itself is sufficient to ensure that you've got to have J. And if you have J. And if you have both G and H, this conditional still applies: You still have J. |
If M, then N or P. | Given M, then we have at least one of either N or P. If we have M, we don't have to have both N and P, but we do have to have one of them. And we might even have all three: M, N, and P all happening doesn't violate this rule. |
If S, then T or V, but not both. | If we have S, we have to have either T or V. But, given S, we can't have both T and V. Whenever you do not see language that explicitly expresses but not both, however, you should assume that the two things joined by or could go together. |
Neither X nor Y | Not X and not Y |