More math & pancakes...

Originally posted by PBE6
However, the question does not require us to determine the actual method of finding the line that cuts the pancake and its boundary in half - we are only required to prove or disprove its existence.

Yes, but you need to prove or disprove the existance of a line that will transform back to a straight line under the inverse transformation. That makes it a bit more complicated.

Originally posted by mtthw
Yes, but you need to prove or disprove the existance of a line that will transform back to a straight line under the inverse transformation. That makes it a bit more complicated.

Ah, yes, that could be tricky. Drat! 🙁