更新1:
Should read :Put this set into words S = {y|y ∈ N or y = 0} I've got a printing problem and ' = ' sign looked like a -
Put this set into words S - {y|y ∈ N or y - 0} .?
回答 (3)
2017-03-09 6:53 am
✔ 最佳答案
The "y - 0" does not mean anything at all. if you meanS = {y|y ∈ N or y = 0}
then it is read as "S equals the set of all y such that y is a natural number or y equals 0"
2017-03-09 6:54 am
"|" in set notation means "such that"
"S - {y|y ∈ N or y < 0}" means
the set, S, minus the set of y such that y is a natural integer or y is less than 0
I'm assuming y - 0 should be y < 0. y - 0 doesn't make sense in this context.
"S - {y|y ∈ N or y < 0}" means
the set, S, minus the set of y such that y is a natural integer or y is less than 0
I'm assuming y - 0 should be y < 0. y - 0 doesn't make sense in this context.
2017-03-09 6:52 am
{y|y ...} = set of y values such that y...
收錄日期: 2021-04-24 00:17:54
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20170308224840AAr3x6k