Ive just lately began a site, the knowledge you provide on this forum has helped me in my work. Thanks for your entire time & work.
Welcome to the forum!
What sort of site?
You cannot teach a man anything; you can only help him find it within himself..........Galileo Galilei
Welcome to the forum.
In mathematics, you don't understand things. You just get used to them.
Of course that result can be rigorously obtained, but who cares?
Combinatorics is Algebra and Algebra is Combinatorics.