"If you believe that X ought to do A and you believe that X's situation and yours are relevantly similar, then you ought to do A"
"If you believe that X ought to do A and you believe that X's situation and yours are relevantly similar, then you ought to do A"
This is a nontheorem. It doesn't have the correct don't-combine form. Your beliefs might be wrong.
"If you believe that X ought to do A and you believe that X's situation and yours are relevantly similar, then you ought to do A"
This is a nontheorem. It doesn't have the correct don't-combine form. Your beliefs might be wrong.