B.5.TU:4.4 - Obtain and inspect a consequence
Work the selected case far enough to answer the question or expose the gap. Use direct reasoning, a construction, a small computation or an available tool according to the work. Recover the step that makes the consequence follow and the premises it uses.
When computation is involved, interpret its inputs, operations and output. C.29.2 supplies a missing computational formulation; C.29.3 supplies the connection to the system performing it. A successful execution can help locate expression or implementation errors. The argument for what the computation establishes remains tied to the chosen formulation.
Compare with a simple consequence you can inspect when that comparison can reveal an error: a limiting case, a preserved quantity, an input count, a dimensional relation or a small enumeration. Select the relevant comparison; its purpose is to expose a possible failure in this application.