A logical argument is a way of explaining why something is true or why a certain course of action should be taken, using clear and reasonable thinking. Full definition
You and your attorney must make logical arguments backed up with credible evidence. (ryinjury.com)
There's no «reasoning» in discussion; just «I believe this» or «I believe that» as though somehow that's a sound logical argument in and of itself. (religion.blogs.cnn.com)
Usually, something more is needed than logical arguments about biblical passages. (redeeminggod.com)