The fire of Matthew.
There is a topic of the "determined integral", he believes that the board is all written, and at the end he says "we see that the difference between the lower and upper sum of the Darbu is less than the epsilon. This shows us that the function is integrated at the interval [a;b]... And now let’s prove the equation... hmmm... In my opinion so *writes-writes-writes*... and no, not so((( *writes*, in my opinion so *writes-writes-writes*... and no, again not so... *writes*... maybe so? *writing-writing-writing"... fucking I don’t remember. Do you shoot???In general, write down that the evidence is so obvious that it does not need to be explained.

I forgot to buy curtains.