FormalConjecturesForMathlib/Combinatorics/SimpleGraph/CycleRank.lean
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1 declarations, 0 contain sorry, 0 declared as axioms
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- def
SimpleGraph.cycleRankThe cycle rank ofG(or cyclomatic number) is the minimum number of edges that must be removed to eliminate all cycles line 28 sourceSource documentation
The cycle rank of
G(or cyclomatic number) is the minimum number of edges that must be removed to eliminate all cycles.standard axioms: Classical.choice, Quot.sound, propext what this means
Statement uses:
Fintype,DecidableEq,SimpleGraph,DecidableRel,SimpleGraph.Adj,NatProof uses:
HSub.hSub,HAdd.hAdd,Finset.card,Sym2,SimpleGraph.edgeFinset,Fintype.card,SimpleGraph.ConnectedComponent7 instances, coercions and auxiliary constants left out.
noncomputable def cycleRank (G : SimpleGraph α) [DecidableRel G.Adj] : ℕ := …