平行公設 píng xíng gōng shè

DEFINITIONS

  1. the parallel postulate (geometry)
  2. Euclid's fifth postulate

CHARACTERS

平 píng flat, level, even; peaceful
行 xíng go; walk; move, travel; circulate
公 gōng fair, equitable; public; duke
設 shè build; establish; display; particle of hypothesis, supposing