input: Write a function to determine if a given list of integers `lst` can be converted into a list of booleans where each boolean is `True` if the corresponding integer is a prime number, and `False` otherwise. If the list `lst` is empty, return an empty list.
  
  def is_prime(n):
      if n <= 1:
          return False
      for i in range(2, int(n**0.5)+1):
          if n % i == 0:
              return False
      return True
  
  def check_lst(lst):
      if not lst:
          return []
      result_lst = [is_prime(num) for num in lst]
      return result_lst
  
  assert check_lst([7, 8, 12, 19, 22, 23]) == [True, False, False, True, False, True]
  assert check_lst([]) == []
  assert check_lst([1, 4, 9, 15]) == [False, False, False, False]
  assert check_lst([2, 3, 5, 7, 11]) == [True, True, True, True, True]
  assert check_lst([47, 48, 49, 50]) == [True, False, False, False]
output: def check_lst(lst):
      if not lst:
          return []
      result_lst = [is_prime(num) for num in lst]
      return result_lst