Is it appropriate to use "that is" followed by a colon when defining something formally? I have the following example: Let γ be the set of groups that hold variables accessed by C, that is: γ ...
Should I use “ or " in very formal English writing?
I have several co-workers in Europe and all of them tend to put a period after their names in the closing of E-mails, e.g.: Thanks, Matt. I've never seen this, so I am curious if it is proper ...
I am sure that this wouldn't have much meaning, but still want to get acknowledged whether usage of double dots is formal. I have observed people using double dots in business Emails. Usually while ...
What is the best way to end an informal sentence (such as a text or over Facebook chat) with haha? Consider the following options: It's always bugged me haha It's always bugged me haha. ...
Should the tilde symbol (~) be used to sign your name? It seems quite commonplace on Internet forums but I don't believe I've ever seen it used in books.