User blog comment:Googleaarex/A new, really strong OCF definition?/@comment-5029411-20170731231606

Ill-definedness was found:
 * $$D[D_1+D[D_1]]$$ = $$D[D_1+D_0]$$
 * $$\psi_{D[D_1+D_0]}(0)$$ = fixed point $$\alpha$$ = $$D[D_1+\alpha]$$

I will fix it later.