#1888 ⟨
a
,
b
|
aaabaaba
=
bb
⟩
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Monoids with two generators and one relation
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#1887
⟨
a
,
b
|
aaabaaba
=
ba
⟩
Next:
#1889
⟨
a
,
b
|
aaabaabb
=
aa
⟩
Quick links
Properties
Rewriting system
Properties
Presentation has sum-of-sides 10
Infinite cancellative non-commutative monoid
Submonoid of enveloping group: ⟨
a
,
b
|
aaabaabab
-1
b
-1
⟩
Embedding:
φ
(
a
) =
a
,
φ
(
b
) =
b
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
Certificate
: derivations of all rewriting rules from the defining relations.
#
Rule
Proof
1.
a
(
a
2
b
)
2
a
⇒
b
2
[1]
2.
b
2
(
a
2
b
)
2
a
⇒
a
3
b
a
2
b
3
[2]
# ab:aaabaaba=bb ab aaabaaba=bb bbaabaaba=aaabaabbb