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Def empty_graph

Modification history

2021-07-21 12:21
src/combinatorics/simple_graph/basic.lean
feat(combinatorics/simple_graph): `boolean_algebra` for `simple_graph`s. (#8330)
Modified empty_graphView on Github →
2021-07-14 17:41
src/combinatorics/simple_graph/basic.lean
feat(combinatorics/simple_graph): add maps and subgraphs (#8223) …
Added empty_graphView on Github →