Logic Games vocab is a tricky thing. The problem generally isn’t knowing what each **word** means. The problem is knowing how the words interact with each other and what various **phrases** actually mean.

For this reason, I’ve decided to go over several things in this article rather than simply doing a vocab list:

1. Words and phrases that can help you recognize a particular type of game.

2. General tips to help you watch out for linguistic trickery and avoid making unwarranted assumptions.

3. Phrases indicating List/Acceptability questions

4. Tips on understanding a particular kind of question that differs from List questions

5. Phrases indicating Suspension and Substitution questions.

6. Tips on understanding some rules that indicate double-arrows

7. A list of 10 words you must know for Logic Games

**1. Recognizing Types of Games**

**Pure Sequencing, Basic Linear, Advanced Linear**

Consecutively / Sequentially / Successively

Ranking / Ordering

No two occur simultaneously, no two occur at the same time

One at a time / One after the other

Not simultaneously, not concurrently, not at the same time

Precedes = comes before

Follows = comes after

Immediately follows

Immediately precedes

Preceded by

Followed by

Immediately preceded by

Immediately followed by

**Selection**

Selected

Contained

Chosen

**Splitting**

(Variables are divided among) exactly one of two (groups)

**2. Avoid making unwarranted assumptions with regard to order**

**Pay attention to the order in which things occur or are ranked (this applies to Pure Sequencing, Basic Linear, and Advanced Linear games):**

front – back

earlier – later

before – after

most – least

behind – in front

**Also pay attention to how rules and answer choices are presented.**

LSAC often gives you the second of two variables first, which requires you to mentally rearrange the variables.

Examples:

PrepTest 34, Game 3, Question 16 (p212 in Next 10)

PrepTest 36, Game 2, Question 9 (p279 in Next 10)

**3. Recognizing List / Acceptability Questions**

They’re often the first question in any Logic Game.

Could be the composition

Could be a complete and accurate list

Could be accurate matching

Could be an acceptable selection

**4. Understanding “Complete and accurate list…any one of which” Questions**

For these questions, they’re not asking if each variable in each answer choice’s list could perform a given action simultaneously. They’re just asking in general.

**5. Recognizing Suspension and Substitution Questions**

**Rule suspension questions** (when the fundamental rule of a game are changed):

Suppose the condition is added…all the other/original/initial conditions remain…

Suspended

**Rule substitution questions** (appeared in PrepTests 57, 58, and 59)

Which one of the following, if substituted for the restriction/condition that…would have the same effect?

Assume original condition X is replaced by condition Y

**6. Recognizing and Understanding Double-Arrow Rules**

“If, and only if” / “If, but only if”

Both of these create a double arrow: X <—> Y

The first “if” introduces the sufficient condition, and the second “if” introduces the necessary condition. This means that X and Y are both sufficient AND necessary for each other. Either we have both, or we have neither.

Examples:

PrepTest 45, Game 4

PrepTest 56, Game 2

“If X then Y; otherwise, not Y.”

The first half is simply what it says: “X -> Y”

The second half, “otherwise, not Y,” really means “If NOT X -> NOT Y

The contrapositive of this second half is Y -> X

Combining this with the first half, we get a double-arrow: X <—> Y

Example:

PrepTest 55, Game 4

Yes, this sort of rule is identical in meaning to the “if, and only if” / “if, but only if” rule that I explained immediately above this rule.

**7. List of 10 Logic Games Vocabulary Words**

Adjacent = immediately next to / touching

Corresponds = matches

Distinct = different, unique

Respectively = in this particular order

Consistent = could be true / does not violate

Inconsistent = cannot be true / violates

Determine = figure out

Fully determined = completely figure out

Not necessarily = does not have to be

Neither X nor Y = NOT X and NOT Y