It depends on the culture and the programming language. The advantage of using noun phrases for pure functions is that 1. only by reading the name of the funct

It depends on the culture and the programming language. The advantage of using noun phrases for pure functions is that 1. only by reading the name of the function you know it's a pure function 2. a call to a pure function in an expression reads more naturally since operands are values and values are nouns.