[離散] 二元關係
for each of the following relations,
determine whether the relation is
reflexive, symmetric, antisymmetric, or transitive
(1) R is the relation on Z+ where aRb if gcd(a,b)=1
(2) R is the relation on Z+ where xRy if x^3 + y^2 is even
請問這兩個要怎麼判斷呢?
謝謝
--
※ 發信站: 批踢踢實業坊(ptt.cc)
◆ From: 218.166.116.187
討論串 (同標題文章)