Adhering to beliefs or practices approved by authority or tradition
They must therefore have been regarded as canonical in the first half of the 4th century.
in the canonical form f=k1(px)5 +k2(gx) 5 +k3(rx) 5 .
The emperor renounced investiture by ring and staff, and permitted canonical elections; the pope on his part recognized the king's right to perform lay investiture and to assist at elections.
For the history of Pali before the canonical books were composed we have no direct evidence.
In all cases canonical institution (which confers ecclesiastical jurisdiction) is reserved to the pope or the bishops.