% SZS status Theorem for MEASURABLE__BIGUNION__PROPER
% SZS output start Proof for MEASURABLE__BIGUNION__PROPER
  file('i/f/measure/MEASURABLE__BIGUNION__PROPERTY',ch4s_measures_MEASURABLEu_u_BIGUNIONu_u_PROPERTY)).
  file('i/f/measure/MEASURABLE__BIGUNION__PROPERTY',ah4s_utilu_u_probs_PREIMAGEu_u_BIGUNION)).
% SZS output end Proof for MEASURABLE__BIGUNION__PROPER
