Unlike Eurocrat rhetoric, which is increasingly full of lies (thank you Jean Claude [3]), prevarications, and half-truths, math is simple and binary. There either are enough numbers, or there aren't. In the case of the European firewall, there aren't (and that is even assuming the IMF somehow manages to convert all the money pledged for a European bailout bailout into money available for disbursement... because there is a world of difference between the two).
[4]
Source: Deutsche Bank