Irish Hermit, as far as I know only those documents generated after the Fall of Constantinople are called the symbolic books. That is what this GOAA article would seem to indicate:
Do you have anything that indicates that Constantinople IV or V were part of that group?
The following are the chief Orthodox doctrinal statements since 787:
1 The Encyclical Letter of Saint Photius (867)
2 The First Letter of Michael Cerularius to Peter of Antioch (1054)
3 The decisions of ‘the Councils of Constantinople in 1341 and 1351 on the Hesychast Controversy
4 The Encyclical Letter of Saint Mark of Ephesus (1440-1441).
5 The Confession of Faith by Gennadius, Patriarch of Constantinople (1455-1456)
6 The Replies of Jeremias the Second to the Lutherans (1573-1581)
7 The Confession of Faith by Metrophanes Kritopoulos (1625)
8 The Orthodox Confession by Peter of Moghila, in its revised form (ratified by the Council of Jassy, 1642)
9 The Confession of Dositheus (ratified by the Council of Jerusalem, 1672)
10 The Answers of the Orthodox Patriarchs to the Non-Jurors (1718, 1723)
11 The Reply of the Orthodox Patriarchs to Pope Pius the Ninth (1848)
12 The Reply of the Synod of Constantinople to Pope Leo the Thirteenth (1895)
13 The Encyclical Letters by the Patriarchate of Constantinople on Christian unity and on the ‘Ecumenical Movement’ (1920, 1952)
These documents — particularly items 5-9 — are sometimes called the ‘Symbolical Books’ of
the Orthodox Church, but many Orthodox scholars today regard this title as misleading and do
not use it.http://www.intratext.com/IXT/ENG0804/_P10.HTM
Phew! It's getting a bit dicey on this forum.... on the one hand we have a Catholic insisting that we don't know our theological onions (Immaculate Conception) and now we have an Oriental Orthodox insisting he knows our Church better than we do. Should we take this out of the Catholic discussion Forum and into the Oriental Forum?