![AD+ AD+](/modules/owlapps_apps/img/nopic.jpg)
In set theory, AD+ is an extension, proposed by W. Hugh Woodin, to the axiom of determinacy. The axiom, which is to be understood in the context of ZF plus DCR (the axiom of dependent choice for real numbers), states two things:
The second clause by itself is referred to as ordinal determinacy.
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