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〈
a
,
b
|
aabbabba
=
ba
〉
Monoid presentation of length 10
Properties
Infinite non-commutative monoid
Completion parameters
Reduction order: left-to-right c/ab
Auxiliary generator
bba=c
Complete rewriting system
bc
⇒
cac
2
ba
⇒
a
2
c
2
a(ac
2
)
2
⇒
c