% SZS status Theorem for NULL0_
% SZS output start Proof for NULL0_
  file('i/f/list/NULL0_c1',ch4s_lists_NULL0u_c1)).
  file('i/f/list/NULL0_c1',ah4s_lists_NULLu_u_DEFu_c1)).
  file('i/f/list/NULL0_c1',aHLu_FALSITY)).
% SZS output end Proof for NULL0_
