intro red rev_targ rev_red
V : Type u
E : Type v
inst✝¹ : DecidableEq V
inst✝ : DecidableEq E
G : Graph V E
u v✝ w✝ : V
e : EdgeBetween G v✝ w✝
v w : V
p : EdgePath G v w
⊢ reduced p → reduced (reverse p)
V : Type u
E : Type v
inst✝¹ : DecidableEq V
inst✝ : DecidableEq E
G : Graph V E
u v✝ w✝ : V
e : EdgeBetween G v✝ w✝
v w : V
p : EdgePath G v w
red : reduced p
rev_targ : EdgePath G w v
rev_red : Reduction (reverse p) rev_targ
⊢ False