Prerequisites Review these foundations first
Must Be True

Step by Step Approach

Connect the dots — read the facts and find what follows.

Video

Summary

Step 1 — Identify the Question Stem

  • "if the statements above are true, which must also be true"
  • "properly inferred" / "must be true"

Even if the stimulus looks like an argument, treat everything as fact. The stem says "must be true" — not "most supported" — meaning the answer is 100% supported.

Step 2 — Read & Connect the Dots

  • Simplify each sentence as you read
  • Connect each sentence to prior sentences — look for overlapping ideas

Step 3 — Is There an Overall Inference?

Do the facts combine into a bigger conclusion? (e.g., A → B → C = A → C)

While conditionals make connecting easier, you can also infer from overlapping facts. If no inference emerges, the right answer could just be a restatement of a single sentence.

Step 4 — Answer Choices

The correct answer will be one of three things:

  • An inference from connecting the dots
  • A summary of the stimulus
  • A restatement of a single sentence

Step 5 — Answer Choice Check

Every word must be 100% supported by the stimulus. Don't forget: the contrapositive is always valid (A → B means not B → not A).

Wrong answer traps: Flipping the conditional (B → A), negating the sufficient (not A → not B), or a strong answer ("all" / "always") for a weak inference ("some" / "might").

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