I have encountered a confusing sentence in a math textbook: Suppose F is a holomorphic function in the sector S that is continuous on the closure of S. What does that mean in the above ...
Here's a standard English sentence: The folder which is missing from the principal's office contained the answers to today's exam. (Separate question, discussed elsewhere I'm sure, whether it ...
Somebody once observed two things: people often omit the relative pronoun "who" or "whom" to avoid having to worry about which is grammatically correct however, in all cases where it can be omitted, ...
When is it appropriate to use that as opposed to which?