export dlo_conv; removed redundant auxiliary operations; tuned exceptions -- avoid error here; simplified tactic wrapper (CSUBGOAL, CONVERSION); merge_ss: recover simpset context; tuned;
export dlo_conv;
removed redundant auxiliary operations;
tuned exceptions -- avoid error here;
simplified tactic wrapper (CSUBGOAL, CONVERSION);
merge_ss: recover simpset context;
tuned;

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