Typo in lecture 2 of week 1

There is a typo in subsection called Line 1 is a valid Julia expression

At the end of page 4 in the note there is written the following paragraph:

"Finally, let’s note that some parts of line 1 would by themselves be valid code, namely the name and the value. A valid expression can be part some larger valid expression."

Actually, the name (mystringexample1) only from line 1 (mystringexample1 = "Hello, world") is not a valid expression hence is not a valid code. Why? because if you type on the name without the equal sign at the REPL and hit enter you receive:

ERROR: UndefVarError: mystringexample1 not defined.

P.S. This is not the case in video as in the video instructor mentions that only string alone can be a valid code which is true.

Find the Week 1, Lecture 2 course note and the subsection "Line 1 is a valid Julia expression," then inspect the note around page 4. Compare the wording with the issue's quoted paragraph and the video explanation. Done means the note accurately describes which parts of the assignment are valid Julia expressions.