2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/63585Based on a normal form for braid group elements suggested by Dehornoy, we prove several representations of braid groups by automorphisms of a free group to be faithful. This includes a simple proof of the standard Artin's representation being faithful.6 pagesGroup TheoryGeometric Topology20F36; 57M05text