Hello professor @kouba01
First of all I want to apologize for this!
Actually I never knew it is called spanning. I was trying to consult his work to apply his idea of how to do it couple with my research.
If you notice not all the post are similar. The only fault I made was that during the process, I copied his format which I admit is wrong.
I just want to look how he do his own homework since I don't have sufficient idea on how to do mine and also apply the idea to my already found research on the homework.
It wouldn't repeat itself again
Thank you