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Asked: 2026-05-14T15:08:49+00:00

Sometimes in Scheme, I have functions that take arguments like this add 3 4

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Sometimes in Scheme, I have functions that take arguments like this

add 3 4

What do you call this kind of “list” where it’s elements are like a1 a2 a3 ? I don’t think you can call it a list because lists are contained in parenthesis and elements are comma-seperated.

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  1. Editorial Team

    Lisp uses prefix or Polish notation syntax.

    Polish notation, also known as prefix
    notation, is a form of notation for
    logic, arithmetic, and algebra. Its
    distinguishing feature is that it
    places operators to the left of their
    operands. If the arity of the
    operators is fixed, the result is a
    syntax lacking parentheses or other
    brackets, that can still be parsed
    without ambiguity.

    add is the operator and the right part are the operands.

    The arity of the operators isn’t fixed so Lisp uses parens in it’s syntax to group the expressions.

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