Theorem: Digraph.Walk.IsTrail.rotate (GraphProjects/DigraphConnectivity.lean)

State before:
V : Type u
V' : Type v
V'' : Type w
G : Digraph V
G' : Digraph V'
G'' : Digraph V''
inst✝ : DecidableEq V
u v : V
c : Walk G v v
hc : IsTrail c
h : u ∈ support c
⊢ IsTrail (rotate c h)
Tactic:
rw [isTrail_def, (c.rotate_edges h).perm.nodup_iff]
State after:
V : Type u
V' : Type v
V'' : Type w
G : Digraph V
G' : Digraph V'
G'' : Digraph V''
inst✝ : DecidableEq V
u v : V
c : Walk G v v
hc : IsTrail c
h : u ∈ support c
⊢ List.Nodup (edges c)

State before:
V : Type u
V' : Type v
V'' : Type w
G : Digraph V
G' : Digraph V'
G'' : Digraph V''
inst✝ : DecidableEq V
u v : V
c : Walk G v v
hc : IsTrail c
h : u ∈ support c
⊢ List.Nodup (edges c)
Tactic:
exact hc.edges_nodup
State after:
no goals