% SZS status Theorem for PERM__FUN__APPEN
% SZS output start Proof for PERM__FUN__APPEN
  file('i/f/sorting/PERM__FUN__APPEND0',ch4s_sortings_PERMu_u_FUNu_u_APPEND0)).
  file('i/f/sorting/PERM__FUN__APPEND0',ah4s_sortings_PERMu_u_EQUIVALENCEu_u_ALTu_u_DEF)).
  file('i/f/sorting/PERM__FUN__APPEND0',ah4s_sortings_PERMu_u_CONG)).
% SZS output end Proof for PERM__FUN__APPEN
