"Beauty is in the eye of the beholder". You don't need to invent a new langauge to express age-old ideas. If you want to mathematize it, you can use standard

"Beauty is in the eye of the beholder". You don't need to invent a new langauge to express age-old ideas. If you want to mathematize it, you can use standard terms like "relation" and "2-ary predicate".