The number of the canons passed by the council of Nicaea 42 was twenty. Subsequently many additions were made to them. The Catholics derive their arguments for the Popes authority from Canons No. 37 and 44. It is written on Page 68 and 69 of ’Les Treize Epitres’ of the second letter printed in 1849 AD:

           The aforementioned council prescribed only twenty canons according to the witness of the history of Theodorus and the writings of Gelasius. The Fourth Ecumenical [1] council also affirmed that there were only twenty Canons prescribed by the Council of Nice.

           Similarly many other false books were written which were attributed to several Popes like Calixtus, Sircius, Nectarius, Alexander and Marcellus. The above book contains this statement on page 80:

           Pope Leo and the majority of the Roman scholars have admitted that the books of these Popes are false and fictitious.

 

[1]An ecumenical council. in Christian terminology, is a council inviting scholar from all parts of the world. Here the athor is referring to the council which was held Chaledon in 451 AD. This Council declared the Monophysites  to be heretics. (Al  Munajjid).