Marilyn L. Dickey Profile Topics Started Replies Created Engagements Favorites Search replies: Forum Replies Created Viewing 1 post (of 1 total) Author Posts July 5, 2017 at 5:26 pm in reply to: Nemeth Code #29246 Marilyn L. DickeyParticipant 2nd request re Nemeth code: P(A and B) Is the letter sign required for both A and B or just B. Thank you Author Posts Viewing 1 post (of 1 total)