2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/176234Born-Infeld strategy to smooth theories having divergent solutions is applied to teleparallel equivalent of General Relativity. Differing from other theories of modified gravity, modified teleparallelism leads to second order equations, since teleparallel Lagrangian only contains first derivatives of the vierbein. We show that Born-Infeld-modified teleparallelism solves the particle horizon problem in a spatially flat FRW universe by providing an initial exponential expansion without resorting to an inflaton field.4 pages, 2 figures. Version to be published in Physical Review DGeneral Relativity and Quantum CosmologyAstrophysicsHigh Energy Physics - TheoryModified teleparallel gravity: inflation without inflatontext