% SZS status Theorem for EMPTY__IS__PTR
% SZS output start Proof for EMPTY__IS__PTR
  file('i/f/patricia/EMPTY__IS__PTREE',ch4s_patricias_EMPTYu_u_ISu_u_PTREE)).
  file('i/f/patricia/EMPTY__IS__PTREE',ah4s_patricias_ISu_u_PTREEu_u_defu_c0)).
  file('i/f/patricia/EMPTY__IS__PTREE',ah4s_bools_TRUTH)).
% SZS output end Proof for EMPTY__IS__PTR
