Author Archives: Julia Fairbank

11.17 Number 9

Hi all,

I’m having trouble translating sentence 9 in 11.17, which says that every dodecahedron with nothing to its right has something to its left. Right now, I am saying there exists an x, where if x is a dodecahedron AND there doesn’t exist a y that is right of x, then there exists some z such that z is left of x. My sentence isn’t “equivalent to any of the expected answers.” Does anyone see where I went wrong?