Unit 12 · Multi-Step Conditional Reasoning

Superheroes, Capes & Stairs — What MUST Be True?

Lesson 14 of 16

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About this lesson

Now for the hardest and most intellectually rich type in this unit: a question where three logical statements chain together, and you must determine which conclusion absolutely MUST follow — not which one feels likely, and not which one sounds reasonable. The central challenge is that your brain will confidently construct connections the rules never actually guaranteed.

Chapters

0:00Introduction
0:20The Question
0:59Exam Strategy – Draw It Out
1:28Mapping Rule 1
1:50Mapping Rule 2 (The Overlap)
2:17Mapping Rule 3
2:43Testing the Options & Final Answer

Question

All superheroes wear capes.

Some people who wear capes are afraid of heights.

Everyone who is afraid of heights must take the stairs.

Which of the following statements MUST be true?

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