Kernel-checked resolution of the last open case of the length-4 Wilf classification on inversion sequences (Hong–Li Conj. 20), 15 length-5 equivalences, and the SPI programme. Produced by an autonomous multi-agent loop; Lean 4 artifacts included.
combinatorics formal-verification autonomous-agents mathlib pattern-avoidance lean4 ai-mathematics inversion-sequences wilf-equivalence
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Updated
Aug 10, 2026 - Lean