class Dry::Logic::Predicate

def curry(*args)

if we never curry the proc then fn.arity & fn.parameters stay intact
as long as we keep track of the args, we don't actually need to curry the proc... 
def curry(*args)
  if args.size > 0
    all_args = @args + args
    size = all_args.size
    if size <= arity
      Curried.new(id, args: all_args, fn: fn, arity: arity)
    else
      raise_arity_error(all_args.size)
    end
  else
    self
  end
end