2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/203295It is shown that the number of independent operators in the nucleon-nucleon parity-violating contact Lagrangian at the leading order in the low-momentum expansion, can be reduced to five, by using Fierz rearrangements of the nucleon fields.4 pages, one reference added, matches the journal versionNuclear Theorytext