Premise: Mr. Freeze ( Victor Fries ) is a fictional supervillain appearing in American comic books published by DC Comics , commonly as an adversary of the superhero Batman . Created by Bob Kane , David Wood , and Sheldon Moldoff , the character first appeared in Batman # 121 ( February 1959 ) , where he was known as Mr. Zero .
Hypothesis: Mr. Freeze first appeared in a Batman comic.
Label: ENTAILMENT