exact ⟨w, huw, pwv, rfl, rfl⟩
case h.cons.mp
V : Type u
V' : Type v
V'' : Type w
G : Digraph V
G' : Digraph V'
G'' : Digraph V''
u v w : V
huw : G.Adj u w
pwv : Walk G w v
⊢ ∃ i h x, Walk.length x = Walk.length pwv ∧ Walk.cons (_ : G.Adj u i) x = Walk.cons huw pwv
no goals