## Problem 026 — rank:19

**Title:** Gene-by-environment map

**Added binding assumptions (LaTeX):**

```latex
The intervention fixes a complete genotype and an environmental exposure history or a constant exposure protocol, not an ambiguous scalar label. Specify the randomization unit and block dependence. The integrated squared-error target is over the declared product law only; correlated genotype--environment deployment requires its actual joint law. Unobserved combinations require explicitly quantified smoothness or interaction restrictions.
```

**Direct edits:** 0. **Fresh external checks:** None; supplied sources retained as provenance.