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18
bio website localize.io
location Germany
age 22
visits member for 3 years, 8 months
seen Dec 9 at 6:23

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Dec
4
accepted Sole minimal element: Why not also the minimum?
Dec
2
awarded  Yearling
Dec
2
awarded  Nice Question
Dec
2
awarded  Commentator
Dec
2
comment Sole minimal element: Why not also the minimum?
Do I even need the $c$ as a non-comparable element then? I mean, if we don't have a minimum in infinite sets like $\mathbb{Z}$, this is the sufficient condition for the statement being wrong, isn't it?
Dec
2
comment Sole minimal element: Why not also the minimum?
Thanks! Are infinite descending chains and non-comparable elements the only exceptions that prevent every subset from having a minimal element?
Dec
2
comment Sole minimal element: Why not also the minimum?
Thank you! So an element that is not comparable (in any direction) is one example where the statement is proved wrong? How is $c$ minimal, however?
Dec
2
comment Sole minimal element: Why not also the minimum?
Thanks! Is this to shown an infinite descending chain?
Dec
2
revised Sole minimal element: Why not also the minimum?
deleted 3 characters in body
Dec
2
asked Sole minimal element: Why not also the minimum?
Nov
30
accepted Prove that there is no number that divides both n and n+1
Nov
30
awarded  Critic
Nov
29
asked Prove that there is no number that divides both n and n+1
Aug
13
awarded  Autobiographer
Oct
26
accepted Union, intersection and complement of a set
Oct
25
comment Union, intersection and complement of a set
I've added these definitions to the question, thank you!
Oct
25
revised Union, intersection and complement of a set
added 132 characters in body
Oct
25
asked Union, intersection and complement of a set
Oct
18
awarded  Scholar
Oct
18
accepted Trigonometry without sine and cosine