Multi-classes and Dual-classed Characters (POSP)

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All the rules from the Player's Handbook and the Dungeon Master Guide still apply to multi-classed and dual-classed characters. However, character points can enhance these divided heroes.
==Multi-classed PCs==
Multi-classed characters are demihumans with two or more professions-fighter/thief, cleric/wizard, thief/wizard/fighter, etc. Such a character gets to spend the full allotment of CPs granted by each class. The points from each class must be spent buying abilities from that class's list only. The character receives, however, only one class's allowance of CPs for purchasing proficiencies; he gets the largest number allowed by his various classes. He can choose proficiencies from any of those allowed to any of his classes. When character points are awarded for advancing a level, they must be divided by the number of classes the character has (retain fractions, don‘t round them up or down).
==Dual-classed PCs==
Dual-classed characters are humans who change their current classes and adopt new professions. For example, a 5th level fighter might put away his sword and become a 1st level wizard. When he—and any other character—changes professions, any unspent character points are lost. The 1st level wizard spends his new character point allotment normally, as if he were adventuring from scratch. When the wizard's new level exceeds that of his first class, he can freely use the abilities of both classes—following all the normal game rules for such a character.