 Cantians take the puzzles of imaginative resistance to arise due to an inability. A number of different versions of cantian theories have been offered and they differ with respect to what they take to be the cause of the inability. There are two main strands of cantian theories: (1) ones that take the cause of inability to be a violation of some type of dependency or grounding relation (dependency-violation theories), and (2) ones that take the cause to be due to a cognitive mismatch (mismatch theories).