Restrictive or Non-Restrictive Clause involving "which"

As I understand it (I had to look it up):

1. Restrictive clauses are essential to the intended meaning, and therefore are NOT set off by a comma(s)

2. Non-restrictive clauses are NOT essential to the meaning (they merely add additional information) and ARE set off by commas.

I can't see how "which is our school's 1L required writing and research class" would be considered essential, so, like you, I would think inclusion of the comma is correct.

Which is another way of saying I don't think it's restrictive, I guess.

http://web.ku.edu/~edit/which.html

If your school had two or more classes entitled "lawyering process II," only one of which was required for 1l students, then I guess it could be a "restrictive" clause in that case. Not likely, though.

Actually, as I read it, if is was restrictive you would be required to use the word "that," rather than "which." So the very choice of the word "which" means that you have decided that what follows is non-restrictive.

Another "fine point," that I never knew (or at least never paid any attention to). That's actually why this post was "clickbait" for me. I realize that I often use "that" as a generic substitute for which, who, etc. I was hoping to get an answer here, rather than give one.

layman wrote: Actually, as I read it, if is was restrictive you would be required to use the word "that," rather than "which." So the very choice of the word "which" means that you have decided that what follows is non-restrictive.
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Your first sentence does not accurately describe English grammar or English usage, Layman. It is another of these falsehoods about language.

Could well be. I think it's clear from the context that I was not making a claim of "fact" but was merely trying to interpret the supposed "expert" source I had cited, to wit: http://web.ku.edu/~edit/which.html

There could be a million "expert" sites which say otherwise, for all I know. As I said:



Are you aware of a website which says this one is wrong. Or did I just misread the one I cited?