设I为整数集合。选出下列是I上的二元运算的二元关系
举一反三
- 设I为整数集合。选出下列是I上的二元运算的二元关系 A: [img=348x25]1803980f668c564.png[/img] B: [img=286x25]1803980f708fa4d.png[/img] C: [img=318x25]1803980f7b55f03.png[/img] D: [img=294x25]1803980f86adba1.png[/img] E: [img=282x25]1803980f908d594.png[/img] F: [img=371x25]1803980f9aadc82.png[/img] G: [img=383x25]1803980fa5b7fc8.png[/img] H: [img=368x25]1803980fb04eba9.png[/img] I: [img=279x25]1803980fbbced35.png[/img]
- 设I为整数集合。选出下列是I上的二元运算的二元关系 A: [img=348x25]1802f916103adbd.png[/img] B: [img=286x25]1802f9161ae0b41.png[/img] C: [img=318x25]1802f916251b866.png[/img] D: [img=294x25]1802f9162fa749f.png[/img] E: [img=282x25]1802f91639f6557.png[/img] F: [img=371x25]1802f916444d8eb.png[/img] G: [img=383x25]1802f91650b6869.png[/img] H: [img=368x25]1802f9165ba5e8b.png[/img] I: [img=279x25]1802f9166711e37.png[/img]
- 设I为整数集合。选出下列是I上的二元运算的二元关系 A: [img=348x25]18037980477b3e1.png[/img] B: [img=286x25]1803798052764ff.png[/img] C: [img=318x25]180379805d42ca0.png[/img] D: [img=294x25]18037980697d638.png[/img] E: [img=282x25]180379807468103.png[/img] F: [img=371x25]180379807f471d5.png[/img] G: [img=383x25]180379808a6fa49.png[/img] H: [img=368x25]180379809544622.png[/img] I: [img=279x25]18037980a029e86.png[/img]
- 设I为整数集合。选出下列是I上的二元运算的二元关系 A: [img=348x25]18036a7625c87c2.png[/img] B: [img=286x25]18036a7631a82e5.png[/img] C: [img=318x25]18036a763cd3849.png[/img] D: [img=294x25]18036a76486293e.png[/img] E: [img=282x25]18036a765326d34.png[/img] F: [img=371x25]18036a765e4bf8b.png[/img] G: [img=383x25]18036a7669aebf2.png[/img] H: [img=368x25]18036a767491786.png[/img] I: [img=279x25]18036a767fc0981.png[/img]
- 设*是集合A上的二元运算，且在A中有关*运算的左幺元el和右幺元er，则el=er=e，且A中幺元e是惟一的。