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## Formal Logic

Summary

Understanding formal logic and conditional statements is crucial for tackling GRE exam questions that require logical deductions.

- Conditional statements are if-then statements and their logical equivalents, crucial for logical deductions on the GRE.
- It's essential to recognize that statements in the form of 'every' or 'all' are conditional statements and can be converted back to if-then form for analysis.
- The contrapositive (if not Q, then not P) of a true conditional statement (if P, then Q) is also true, and this concept is vital for solving GRE logic problems.
- Understanding and constructing the contrapositive is a key skill, especially when dealing with unfamiliar or fictional information in GRE questions.
- Practical examples and practice problems help illustrate how to apply these concepts to deduce correct conclusions from given statements.

Chapters

00:00

Introduction to Formal Logic

00:22

Understanding Conditional Statements

03:26

The Importance of the Contrapositive

04:35

Applying Logic to GRE Questions