関連ワード:  zero is rational number true or false    zero is smallest rational number true or false    zero is not rational number true or false    zero is positive rational number true or false    1 0 is rational number true or false    zero is additive identity of rational number true or false    zero is greater than every negative rational number true or false    zero is the multiplicative identity of rational number true or false    zero is neither positive nor negative rational number true or false    zero is greater than every positive rational number true or false  
結果 : zero is rational number true or false