% SZS status Theorem for depth__rules_
% SZS output start Proof for depth__rules_
  file('i/f/lbtree/depth__rules_c0',ah4s_lbtrees_depthu_u_def)).
  file('i/f/lbtree/depth__rules_c0',ch4s_lbtrees_depthu_u_rulesu_c0)).
% SZS output end Proof for depth__rules_
