gengwall

I found the book where I had first been exposed to this concept of Paul quoting the Corinthians. The book is 10 Lies the Church Tells Women by J. Lee Grady. In a section titled “The Secret to Interpreting 1 Corinthians 14”, he says:

“There are several reasons scholars believe that verses 34 and 35 of this passage are quotes from the letter Paul is answering. The most important clue is that the Greek symbol “n” (with a grave accent) is used at the beginning of verse 36 to signal to the reader that the preceding statement is quoted.”

Just what you have said all along Cheryl!
For reference, his references to research from which he draws that conclusion are: Walter C. Kaiser, Jr., “Shared Leadership,” Christianity Today, October 3, 1986, 124; Joseph H. Thayer, Thayer’s Greek-English Lexicon of the New Testament (Nashville, TN: Baker Book House Co., Broadman Press, 1977), 275.
The reference for my quote above is: J. Lee Grady, 10 Lies the Church Tells Women (Lake Mary, FL: Charisma House, A Strang Company, 2006), 71.