## Problem 232 — rank:288

**Title:** Immune-repertoire generation

**Added binding assumptions (LaTeX):**

```latex
Fix the selection-weight normalization and latent event-label equivalences. Productive and nonproductive sequences identify generation only under an explicit relation between their sampling and developmental histories; nonproductive observations are not automatically an unbiased generation sample. Expansion is per selected founder under the stated convention. Include an outside-domain category when claiming missing mass beyond the finite supported sequence set, with explicit bounds rather than renormalizing it away.
```

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