  This is a survey on an analogue of tropical convexity developed over the
max-min semiring, starting with the descriptions of max-min segments,
semispaces, hyperplanes and an account of separation and non-separation results
based on semispaces. There are some new results. In particular, we give new
"colorful" extensions of the max-min Caratheodory theorem. In the end of the
paper, we list some consequences of the topological Radon and Tverberg theorems
(like Helly and Centerpoint theorems), valid over a more general class of max-T
semirings, where multiplication is a triangular norm.
