Responses
WHAT?!?! oh noooooo D: is there no way for another company to take it up?
It actually ended at Vol. 50. But there's a sequel at the new magazine. https://www.mangaupdates.com/series.html?id=119534
Yes, apparently they also changed the title and his trademark to iff (if and only if). Hopefully it is more about math logic and no more pure math thingy. It's not like I hate it, but I don't understand it and the author doesn't give a better explanation.
Bad news, apparently the manga has been discontinued due to the bankruptcy of the magazine publisher...
Well, it stopped around vol. 50, so it will probably take a while to catch up.