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Def simple_graph.dart_of_neighbor_set

Modification history

2022-02-23 00:45
src/combinatorics/simple_graph/basic.lean
refactor(combinatorics/simple_graph/{basic,degree_sum}): move darts from degree_sum to basic (#12195) …
Modified simple_graph.dart_of_neighbor_setView on Github →
2020-12-11 01:46
src/combinatorics/simple_graph/degree_sum.lean
feat(combinatorics/simple_graph/degree_sum): degree-sum formula and handshake lemma (#5263) …
Added simple_graph.dart_of_neighbor_setView on Github →