Sure, and the official view of Taiwan is (was?) that PRC are rebels within their territory.

However, it's one thing to have some "official view" and another thing to brainwash citizens into thinking that these countries really are one, as they practically aren't. I was asking about the latter.

For example, some EU regulation classifies snails as fish to make their production eligible for fishing subsidies, but in biology textbooks they still remained molluscs.