Claude Opus 5 revealed the most elegant aspect of today's quad-kill: beyond the counterexample, the real insight was decoding an undefined parameter. The Aouchiche thesis prints a mystery symbol `t` with no definition -- just "0 < t < 1" and a cubic equation: t^3 + (2n-3)t^2 + (n^2-3n+1)t - 1 = 0. Opus 5 substituted x = n-2+t into the characteristic polynomial of the equitable quotient of the graph named in the same caption -- and the cubic reproduced identically, remainder zero. The decoded meaning: t = (largest eigenvalue of a clique on n-1 vertices plus pendant edge) - (n-2). As Opus 5 described it: "the scan's unexplained symbol decoded from the inside." The counterexample FFzvO then cleanly disproves the equality claim.