I was reading a manga when this sentence came up:
I first thought it meant "isn't it warm?", however, there was just one thought bubble yet the sentence was written in this format (both vertical rather than horizontal):
then ないですか right next to 暑いでは
my question is, why don't write 暑いではないですか all together instead of separately? or is this separation meaningful and it makes the sentence mean something other than "it's not warm"?