Premise: "The young boy pedals quickly at a bmx race."
Hypothesis: "There are no chains on the bike."
Do we know that the hypothesis entailed by the premise? Stream of thoughts:

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
user
The boy is already peadling quickly so the bike definitely has chains.
Therefore, the answer is no.