Adjacent-numbered pages: BP807 BP808 BP809 BP810 BP811  *  BP813 BP814 BP815 BP816 BP817
easy, abstract, notso, stretch, anticomputer, subjective, invalid, experimental, funny, dithering
Aaron David Fairbanks
Or, perhaps more concretely, "Depiction of object with some symmetry (invariance under transformation) vs. depiction of object with no simple symmetries."
Adjacent-numbered pages: BP842 BP843 BP844 BP845 BP846  *  BP848 BP849 BP850 BP851 BP852
nice, fuzzy, abstract, math, concept, collective, dithering
Leo Crabbe