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〈
a
,
b
|
aabbaa
=
bb
〉
Monoid presentation of length 8
Properties
Infinite non-commutative monoid
Completion parameters
Reduction order: left-to-right ab
Complete rewriting system
a
2
b
2
a
2
⇒
b
2
b
4
a
2
⇒
a
2
b
4
(b
2
a)
2
a
⇒
a(ab
2
)
2