% SZS status Theorem for mult__ass
% SZS output start Proof for mult__ass
  file('i/f/ring/mult__assoc',ch4s_rings_multu_u_assoc)).
  file('i/f/ring/mult__assoc',ah4s_rings_isu_u_ringu_u_def)).
% SZS output end Proof for mult__ass
