theorem Th30: :: GLIB_009:30

for G1, G2 being _Graph
for W1 being Walk of G1
for W2 being Walk of G2 st W1 .vertexSeq() = W2 .vertexSeq() holds
( len W1 = len W2 & W1 .length() = W2 .length() & W1 .first() = W2 .first() & W1 .last() = W2 .last() & W2 is_Walk_from W1 .first() ,W1 .last() )