The Larkfield pool lowers its water temperature whenever it hosts a competition. It also lowers the temperature during its annual deep-clean week.
Statement: If the Larkfield pool has lowered its water temperature, it is hosting a competition.
Watson–Glaser Interpretation
Watson–Glaser Interpretation gives a passage and a proposed conclusion, and asks whether the conclusion follows beyond reasonable doubt. It is stricter than 'sounds plausible' and looser than formal logical proof.
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How to think about it
- Ask whether the passage puts the conclusion beyond reasonable doubt.
- If a reasonable alternative reading survives, the conclusion does not follow.
- Do not demand airtight logical proof — the standard is beyond reasonable doubt, not certainty.
- Check the direction of any conditional before deciding.
The most common trap
Generic scepticism — deciding nothing ever 'follows'.