what is it?
"Konig's Lemma" essentially says that every infinite tree contains an infinite path.
I didn't know that myself until I read your question, went to "google.com" and entered "Konig's Lemma". I recommend you try that yourself.
What about the tree which consists of a central point, x, with infinite points around it connected only to x?
Why is this not counted as an infinite tree?
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