7
votes
2answers
885 views

Is it okay to start a sentence with a Greek letter (variable)?

Is it okay to start a sentence with a variable? Do I need to rewrite a sentence just because the subject is typeset as a Greek letter? For example: Φ is treated in a special way. vs. ...
14
votes
7answers
52k views

Can “hence” be used at the beginning of a sentence?

Can the word ‘hence’ be used at the beginning of a sentence? For example: Hence, I am not feeling well, I am unable to work.