LSAT Key Vocabulary
Essential terms and definitions you must know before exam day.
Key Vocabulary
Sufficient condition
A condition that guarantees a result. 'If A then B' → A is sufficient for B.
Necessary condition
A condition required for a result. 'Only if B then A' → B is necessary for A.
Contrapositive
The logically equivalent negation: 'If A then B' ↔ 'If not B then not A'.
Ad hominem
Fallacy of attacking the person rather than their argument.
Correlation/causation
Common LSAT flaw: treating a correlation as proof of causation.
Vocabulary Study Tips
- 1.Take a timed diagnostic before starting prep — know your baseline.
- 2.Focus on Logical Reasoning first — it's half your score.
- 3.Drill question type by question type before mixing.
- 4.Review every wrong AND every 'guessed right' answer.