Interactive product proof

Turn one wrong option into the next useful check.

Synthetic investor v0

Two reviewed protocols, a bounded symbolic verifier, and explicit abstention. No account, learner data, or AI diagnosis is involved.

MCQ reasoning clinicJEE-style algebra · quadratic equations
Synthetic v0
  1. 1Response
  2. 2Candidates
  3. 3Probe
  4. 4Check
  5. 5Repair
  6. 6Transfer
  7. 7Action
Synthetic single-choice response

Find all real values of x that satisfy x² = 49.

The recorded response is wrong. That fact can identify an observable pattern, but it cannot identify why the learner chose it.

Released item branch-01clinic-content-v0.1.1
Ax = 7Recorded response
Bx = −7
Cx = −7 or x = 7
DNo real value