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〈
a
,
b
|
aaaba
=
ab
〉
Monoid presentation of length 7
Properties
Infinite non-commutative monoid
Completion parameters
Reduction order: left-to-right ca/b
Auxiliary generator
ab=c
Complete rewriting system
a
2
c
2
⇒
(ca)
2
a
2
ca
⇒
c
cb
⇒
(ca)
2
ab
⇒
c