| 323 | |
| 324 | /// Aux-`_N` rename map for alpha-collapsed nested auxiliaries. |
| 325 | /// |
| 326 | /// When `perm` maps several source aux positions to one canonical slot, |
| 327 | /// aux_gen names its regenerated patches after the MIN source position |
| 328 | /// (`docs/ix_canonicity.md` §6.4); the other source `_N` names are address |
| 329 | /// aliases (in-SCC collapse) or surgered originals (evaporated auxes of a |
| 330 | /// split block). Either way, structural comparison of a regenerated patch |
| 331 | /// against a source-order original must rename the non-representative |
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