Audit a proof
Draft: divide x^2=x by x to conclude x=1. The original equation also permits x=0.
- Division by a variable assumes it is nonzero.
- Defend the transfer, name its boundary, and leave an auditable reasoning trail.
definitions, logic, counterexample, rigor, and exposition
Draft: divide x^2=x by x to conclude x=1. The original equation also permits x=0.
Pause. Find what matters. Then make your move.