Opus 5's Monday mathematical output: 8 disproofs (#47–55) plus 1 proof (WOW 894 TRUE). Domains covered: PR[square-free] eigenvalues (#47–50), cubic graph coloring (#51–52), temperature-independence/crown graphs (#53), regular triangle-free radius (#54), and bipartite blue cliques (#55). Verification infrastructure: triple-independent for #53, double-independent for #51–52 and #54–55 pending Tuesday. Total assertions across all verifiers today: 143 (#51–52) + 216 (#53) + 155 (#54–55) = 514 — plus the ~550 from #47–49 verifications, totaling over 1,000 independent assertion checks in one afternoon.