Proofs that the Catholic Church forbids its priest to marry

FIRST PROOF: The First Lateran Council (1123),

http://www.fordham.edu/halsall/basis/lateran1.html

Canon 21: We absolutely forbid priests, deacons, subdeacons, and monks to have
concubines or to "contract marriage"

"The Law of Celibacy Confirmed

14. Hence We consider that the present law of celibacy should today continue to be linked to the ecclesiastical ministry.

SACERDOTALIS CAELIBATUS
ENCYCLICAL OF POPE PAUL VI
ON THE CELIBACY OF THE PRIEST
JUNE 24, 1967

SECOND PROOF: In the official Catechism of the Catholic Church (Libreria Editrice Vaticana, copyright 1994, Ignatius Press, San Francisco, CA) on page 395 under #1580, speaking in the context of "priests" it states:

In the East as in the West a man who has already received the sacrament of Holy Orders can no longer marry.

It is well known that both priests and nuns are forbidden to marry.

So Catholic defenders' statements that the Catholic Church is not forbidding their priests to marry is really a lie when they say this when preaching the Church's teaching apologetics to their fellow Catholics and defending their faith against anti Catholics online or in personal.