Does the Church hold both as equals ?
Doctrine is more general: all Church teaching in matters of faith and morals.
Modern Catholic Dictionary has:Doctrine: Any truth taught by the Church as necessary for acceptance by the faithful. …
Dogmas are those doctrines which the Church proposes for belief as formally revealed by God.
So as a catholic I would have to believe Mary to be CoRedemptrix even though it is not yet Dogma?
Co-redemptrix is a popular title for The Blessed Virgin Mary, not a Church teaching, it is not defined.