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MMLU / Function signatures describe the types of the arguments to a function as well as…

Problem

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question

Function signatures describe the types of the arguments to a function as well as the return value of the function. For instance, the addition function on reals has a signature of
add : real x real -> real
since it takes two real numbers and returns a real number. But, for a language that allows functions as return values, addition could be considered to have the signature
add : real -> (real -> real)
which means that add takes a single real (the first operand) and returns a new function that itself takes a single real (the second operand) and returns a real (the result). This process of reducing a function with multiple arguments to a function with fewer arguments is called currying. Which of the following is correct?

choices

  1. Currying can be applied to any function to the point where it has exactly one input argument.
  2. Currying cannot be applied to functions of more than two arguments.
  3. Currying cannot be applied to functions that return functions as arguments.
  4. Currying cannot be applied w functions that haw arguments that are functions.

subject

college_computer_science

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Source and history

task_id
2a326652-8027-5849-bbe5-78cd7f341c32
task_key
all--test--2a326652-8027-5849-bbe5-78cd7f341c32
task_revision_id
1
config / split
all / test

Official source

initial import