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〈
a
,
b
|
aabbba
=
abb
〉
Monoid presentation of length 9
Properties
Infinite non-commutative monoid
Completion parameters
Reduction order: left-to-right ca/b
Auxiliary generator
abb=c
Complete rewriting system
acbc
⇒
c
2
ba
acba
⇒
c
cb
2
⇒
c
2
ba
ab
2
⇒
c