partially ordered set 그럴 것 같은데.. 아니라고?1️⃣2️⃣ Math 구독하기 👍 : http://bit.ly/3Pw2NOG 1️⃣2️⃣ Math 회원가입 👍👍 : http://bit.ly/3kiw8BMhttps://youtube.com/watch?v=DPOYCjgvQ2o&feature=shares
Seonglae ChoSeonglae ChoSeonglae ChoSeonglae ChoSeonglae ChoSeonglae Cho
