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〈
a
,
b
|
abbaaaab
=
a
〉
Monoid presentation of length 9
Properties
Infinite non-commutative monoid
Completion parameters
Reduction order: left-to-right ba
Complete rewriting system
a
5
b
⇒
aba
4
aba
4
b
⇒
ab
2
a
4
ab
2
a
4
b
⇒
a