#265 ⟨
a
,
b
|
abba
=
aba
⟩
Up:
Monoids with two generators and one relation
Prev:
#264
⟨
a
,
b
|
abba
=
aab
⟩
Next:
#266
⟨
a
,
b
|
abba
=
abb
⟩
Properties
Presentation has sum-of-sides 7
Infinite non-commutative monoid
Complete rewriting system
Format:
Pretty
Plain
Word to reduce:
Tips:
Lowercase letters stand for generators.
Spaces are ignored.
Numbers repeat the previous letter, e.g.
b90
.
Reduction strategy:
Leftmost
Rightmost
Path to normal form:
1
1
Reduction order:
Left-to-right shortlex with
a
<
b
a
b
2
a
⇒
aba
# ab:abba=aba ab abba=aba
Right Cayley graph (truncated)
Left Cayley graph (truncated)
