Statements:Â All bulls are cows.
                             No cow is ox.
                             Some ox are buffaloes.
                            All ox are cattle.
Conclusion:Â Â Â I. Some cattle are ox.
                        II. Some cows are bulls.
                        III. Some buffaloes are cows.
                        IV. Some ox are bulls.
All ox are cattle (A) ⇒ Conversion ⇒ Some cattle are ox. (I). Hence conclusion I follows. All bulls are cows. (A) ⇒ Conversion ⇒ Some cows are bulls(I). Hence conclusion II follows. No cow is ox(E) + Some ox are buffaloes(I) ⇒ Some buffaloes are not cows(O*). Hence conclusion III does not follow. All bulls are cows(A) + No cow is ox(E) ⇒ No bull is a ox(E) ⇒ Conversion ⇒ Some ox are not bulls(O). Hence conclusion IV does not follow.
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