I have three questions about sentences used in a contract:

Either party may terminate this agreement on/upon/after/once giving four weeks notice to the other party.

Q1. Which are correct choices?

Your job description may be changed after discussion with you.

Q2. Should there be an article before discussion? Why?

If you are absent from work for a continuous period of three working days, you shall be deemed to have abandoned and so terminated your employment without notice.

Q3. Wouldn't therefore be a more formal word to use in this context than so?

Thank you
1. upon

2. No. "Discussion" in this case is uncountable. (some discussion)

3. Yes, it would. But since "so" is register neutral, why bother?
You could also use "thus." Same deal.
BTW, who said anything about not giving notice?
Okay, I get it. There's no such thing as an excused absence. I once had a job like that.
The difference is that if you give two weeks notice before quitting, the company may give you a better recommendation. Emotion: big smile (Don't hold your breath.)

Best regards, - A.
Students: We have free audio pronunciation exercises.
Thanks, Avangi.

I now see why discussion is uncountable. For some silly reason I thought because the contract is aimed at one individual, the discussion is specific also. Stupid.
AvangiBTW, who said anything about not giving notice?
Sorry, not following. Are you referring to my final sentence?

Quitting without notice is a deadly sin. That's what he's beng accused of.

But they seem to be terminating the guy whether he "calls in sick" or not.

Then I realized there's a difference between giving notice of not coming in because of illness, and giving notice of intention to quit.

At first, I thought, "Don't they have to specify in this "charge" that the guy stayed away for three days without contacting the company, if they're going to accuse him of abandoning his job without notice?"

But with these guys it's a matter of definition that if you're a no-show for three days (call in or not) you're considered to have abandoned your job.