% SZS status Theorem for SUM__SET__SI
% SZS output start Proof for SUM__SET__SI
  file('i/f/pred_set/SUM__SET__SING',ch4s_predu_u_sets_SUMu_u_SETu_u_SING)).
  file('i/f/pred_set/SUM__SET__SING',ah4s_combins_Iu_u_THM)).
  file('i/f/pred_set/SUM__SET__SING',ah4s_predu_u_sets_SUMu_u_SETu_u_DEF)).
  file('i/f/pred_set/SUM__SET__SING',ah4s_predu_u_sets_SUMu_u_IMAGEu_u_SING)).
% SZS output end Proof for SUM__SET__SI
