This is related to Can I start a sentence with "i.e."? so I’ll use his sentence as an example.
I agree that it should be a parenthetical statement, not a separate sentence (which is was the solution to the previous answer)… But what if it is artificially segregated? Imagine you send this text message:
How do we handle the case when the list is empty?
And THEN you decide you wish to add an example, so you send another text:
I.e., if the filter matched no entries?
What is the correct capitalization? “i.e. If”, “i.e. if”, “I.E. If”, “I.e. If”, “I.e. if”, etc?
Answer
The Chicago Manual of Style has no example like the one you gave. But you can use your “I.e.,” in this case like a colon. As such, since you are asking a question, you would capitalize “I” in “If.”
I.e., If the filter matched no entries?
But I would not capitalize “if” for a list, a sentence fragment, or a single sentence ending with a period, similar to a colon.
Attribution
Source : Link , Question Author : iAdjunct , Answer Author : Stu W
