For every n ≥ 2 and m ≥ 0, every actual named vertex of S(25^n,1^m): its center, each depth 1 through 25 on every named arm, and each of its m original center leaves when present. A possibly different graceful labeling is supplied for each selected vertex. The graph has 25n+m edges; vertex labels are 0..25n+m and edge weights are 1..25n+m.
假设
S(25^n,1^m) is the finite spider with n named arms of exactly 25 edges each and m original unit leaves attached to the center. A graceful labeling is a bijection from vertices to 0 through |E| and induces a bijection from edges to 1 through |E| by absolute endpoint differences. Every selected vertex is handled separately.
工具链
Lean 4.34.0; 27 fixed-k25 modules freshly compiled with -DwarningAsError=true in author freeze and separate copied-source replay; theorem GracefulBoundary.K25Full.all_vertices; internal mathematical/graph QA. Standard Lean kernel verification.
审查者
Internal mathematical/graph QA and separate copied-source Lean replay only; no external or peer review is claimed.
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