X must be open or one of the axioms would not be satisfied. In the example 5 no one union of open sets is capable comprises X, if X is not among these sets.
First of, I'd like to hear in this "explanation" a simple question WHY and a simple answer to it, BECAUSE. Otherwise it all sounds like a delirious monologue of a dementia tremens patient
These concepts are so simply if you just teach with pictures from video games or something...I recommend a different teaching strategy sir. But great effort indeed, you're doing a great job :)
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mmhhoo1990 7 hours ago
Comment removed
Haseeb2 1 month ago
For example 5, is X not open and so the union of anything and X would not be open?
wintermoot 3 months ago
@wintermoot
X must be open or one of the axioms would not be satisfied. In the example 5 no one union of open sets is capable comprises X, if X is not among these sets.
vivictorov 2 months ago
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First of, I'd like to hear in this "explanation" a simple question WHY and a simple answer to it, BECAUSE. Otherwise it all sounds like a delirious monologue of a dementia tremens patient
scrtg 5 months ago
These concepts are so simply if you just teach with pictures from video games or something...I recommend a different teaching strategy sir. But great effort indeed, you're doing a great job :)
JFStarwood 5 months ago
@JFStarwood pictures are good too, would be a good aid for topology
although putting everything on theoretical basis is still necessary
theodorehui 5 months ago
What...
Strawberryx132 5 months ago 2
@Strawberryx132 Upper echelon mathematics junior.
SonOfNye 2 months ago