Worked solutions for Lesson 1 — From gross to net. Each is the full, running answer — the cession next to the frozen table of nets it produces, every row green, net = gross + ceded doing all the work.
Read a solution only after you have tried the exercise. The whole point is to be surprised first: a net you looked up teaches you nothing; a net that defied your prediction — the floored claim, the untouched attritional — you never forget.
- 🟢 Predict the net — the seven claims with their true nets, and why adding a negative is the cession.
- 🟡 Build the cession — the three-certificate
Cedein three lines, both totals proven by plain summing. - 🔴 Spec the treaty — the seven-claim battery with both interactions pinned, and the two-line treaty that satisfies it.