Not really. I guess Cruz only needs 65% of the remaining to get to 1100. So this stuff about being mathematically eliminated is untrue if you only need 1100.
After the end of April Primaries in the Northeast, Cruz will be mathematically eliminated for 1237, 1100, or any other number you can dream up.
Cruz will be mathematically eliminated soon, but all is not lost. Cruz can crawl back to his diseased ridden whores and dive in again!
It has been pointed out by more dispassionate observers that a candidate who gets close will benefit from bandwagon and unity effects. Uncommitted and released delegates will put him over the top.
During the first ballot, there are ways to allow some delegates to ‘correct’ their votes as the outcome becomes clear.
A lot of the GOP-E blather is a psy-op to try to get Trump to go third party or do something disqualifyingly stupid like endorse violence against delegates before the convention.