Elijah is taller than Jon because he is taller than Steve. If Steve is taller than Jon, that means Elijah is taller than both of them, including Steve.
Yes Elijah is taller than Jon because if Steve is taller than Jon, and Elijah is taller than Steve, that makes Elijah taller than Jon. The heights from greatest to least are Elijah, Steve and then Jon being the shortest.
