CapnZapp
Legend
Yes, but this has already been hashed out countless times on this and other forums.The wording for this is a little weird however. Multi-class rules say: "You determine what spells you know and can prepare for each class individually, as if you were a single-classed member of that class." The prepared-casting classes all limit prepared spells by saying: "The spells must be of a level for which you have spell slots." A cleric 5/wizard 5 has 5th level spell slots, so you could make the argument that they should be able to prepare 5th level cleric spells (not wizard spells however, since they can't put 5th level spells in their spell book). Wizards has clarified that this is not how the multi-class rules are supposed to work, but in the absence of that clarification you could easily interpret the rules that way.
Meaning that this particular subthread would be much better served with links to discussions where all of this has been said already.
Thanks