I'm a maths student in Germany and I am currently writing my thesis in English. Now I want to say the following:
Let A and B denote the first and the last point respectively in the sequence S such that A and B belong to C
So A is the first point and B is the last point ...
I am really not sure about where I should put the word respectively. Also I'm unsure about where I should put commas.
Thanks in advance.