# Math Help - which is the maximal element of the set S={...}

1. ## which is the maximal element of the set S={...}

Hello !

which is the maximal element of the set S={ {1,2},{1,2,3},{3,4},{4,5}} which A<=B <=>$A \subseteq B$,

which is the maximal elements by zorns lemma ?????

2. ## Re: which is the maximal element of the set S={...}

Hey john27.

This might seem like a dumb question, but partial order are you using for this?

3. ## Re: which is the maximal element of the set S={...}

Originally Posted by john27
which is the maximal element of the set $S=\{ \{1,2\},\{1,2,3\},\{3,4\},\{4,\5}\} \text{ which } A\le B \iff A \subseteq B$,
which is the maximal elements by zorns lemma ?????

Do not double post.

You posted this before.