CP COMMON PROOFReasoning in public

A question deserves more than a verdict

Make the discussion clearer.

Separate what is claimed, what is assumed and what people value. Learn with the example, then prepare your own question. Free, no account; nothing is autosaved.

Five-minute exercise: how to read this example
  1. Compare N1's reported global estimate with N2's research assessment. Neither supplies this corridor's local data.
  2. Open N4 and N5. Which assumptions would you test before trusting the predictions?
  3. Open N6 and N7. What priorities and affected groups need discussion?
  4. Open N8. Decide what you would ask next before agreeing to any proposal.

These prompts teach distinctions. There is no mastery score, automated verdict or claim that the proposal is correct.

Guided case study Hypothetical cycle-lane pilot · Sources reviewed 8 Sep 2026

Should our city run a 12-month pilot replacing curbside parking on one side of a busy commercial street with a protected cycle lane?

No verdict. This is one hypothetical corridor, not a real consultation. No local data has been supplied.

Claim map · 8 nodes Editorial teaching example

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Cancel keeps your current work. Save workspace JSON first if you need a separate copy. The teaching example is never changed.