Prompt & Question
Prompt: Create a concise, self-contained brief of Calinger’s full-scale biography of Euler, with historical context and reliable metadata.
Question: What makes this biography distinctive, how is it situated in scholarship, and what are the key publication facts (dates, pages, ISBNs)?
Program (Driver)
A tiny “check” harness ensures every data-claim has at least one footnote in Citations.
// Pseudocode
const claims=[...document.querySelectorAll('[data-claim]')];
for (const c of claims) assert(c.querySelector('sup a[href^="#fn-"]'));
Proof = Reason Why + Check. “Reason Why” summarizes evidence; “Check” verifies structure.