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B.5:3 - Forces
| Force | Tension |
| Purpose and discovery | A question directs effort, while a useful result may reveal a better question. |
| Construction and justification | A new object or conjecture opens possibilities; its properties and applicability still need the appropriate argument. |
| Abstraction and use | A simpler representation saves effort, while its lost distinctions can decide the intended use. |
| Rigor and affordability | Formalization, computation and observation can expose errors, but their whole burden must serve the question. |
| Current result and future possibilities | A sufficient answer deserves a stop; a retained construction may enable a different worthwhile inquiry. |