I have never seen one. Have you?
I have never seen one. Have you?
And I doubt very much that you will ever see one :-)
“Although the individual bishops do not enjoy the prerogative of infallibility, they can nevertheless proclaim Christs doctrine infallibly. This is so, even when they are dispersed around the world, provided that while maintaining the bond of unity among themselves and with Peters successor, and while teaching authentically on a matter of faith or morals, they concur in a single viewpoint as the one which must be held conclusively. This authority is even more clearly verified when, gathered together in an ecumenical council, they are teachers and judges of faith and morals for the universal Church. Their definitions must then be adhered to with the submission of faith” (Lumen Gentium 25).”
Deciding what is “ex cathedra” might make the task less simple.